20902860

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:75

約数の個数: 288

約数和(自身を含む): 79252992

約数和(自身を除く): 58350132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 23, 27, 30, 33, 34, 36, 44, 45, 46, 51, 54, 55, 60, 66, 68, 69, 81, 85, 90, 92, 99, 102, 108, 110, 115, 132, 135, 138, 153, 162, 165, 170, 180, 187, 198, 204, 207, 220, 230, 243, 253, 255, 270, 276, 297, 306, 324, 330, 340, 345, 374, 391, 396, 405, 414, 459, 460, 486, 495, 506, 510, 540, 561, 594, 612, 621, 660, 690, 748, 759, 765, 782, 810, 828, 891, 918, 935, 972, 990, 1012, 1020, 1035, 1122, 1173, 1188, 1215, 1242, 1265, 1377, 1380, 1485, 1518, 1530, 1564, 1620, 1683, 1782, 1836, 1863, 1870, 1955, 1980, 2070, 2244, 2277, 2295, 2346, 2430, 2484, 2530, 2673, 2754, 2805, 2970, 3036, 3060, 3105, 3366, 3519, 3564, 3726, 3740, 3795, 3910, 4131, 4140, 4301, 4455, 4554, 4590, 4692, 4860, 5049, 5060, 5346, 5508, 5589, 5610, 5865, 5940, 6210, 6732, 6831, 6885, 7038, 7452, 7590, 7820, 8262, 8415, 8602, 8910, 9108, 9180, 9315, 10098, 10557, 10692, 11178, 11220, 11385, 11730, 12420, 12903, 13365, 13662, 13770, 14076, 15147, 15180, 16524, 16830, 17204, 17595, 17820, 18630, 20196, 20493, 20655, 21114, 21505, 22356, 22770, 23460, 25245, 25806, 26730, 27324, 27540, 27945, 30294, 31671, 33660, 34155, 35190, 37260, 38709, 40986, 41310, 42228, 43010, 45441, 45540, 50490, 51612, 52785, 53460, 55890, 60588, 61479, 63342, 64515, 68310, 70380, 75735, 77418, 81972, 82620, 86020, 90882, 95013, 100980, 102465, 105570, 111780, 116127, 122958, 126684, 129030, 136620, 151470, 154836, 158355, 181764, 190026, 193545, 204930, 211140, 227205, 232254, 245916, 258060, 302940, 307395, 316710, 348381, 380052, 387090, 409860, 454410, 464508, 475065, 580635, 614790, 633420, 696762, 774180, 908820, 950130, 1045143, 1161270, 1229580, 1393524, 1741905, 1900260, 2090286, 2322540, 3483810, 4180572, 5225715, 6967620, 10451430, 20902860]

約数ペア:

[(1, 20902860), (2, 10451430), (3, 6967620), (4, 5225715), (5, 4180572), (6, 3483810), (9, 2322540), (10, 2090286), (11, 1900260), (12, 1741905), (15, 1393524), (17, 1229580), (18, 1161270), (20, 1045143), (22, 950130), (23, 908820), (27, 774180), (30, 696762), (33, 633420), (34, 614790), (36, 580635), (44, 475065), (45, 464508), (46, 454410), (51, 409860), (54, 387090), (55, 380052), (60, 348381), (66, 316710), (68, 307395), (69, 302940), (81, 258060), (85, 245916), (90, 232254), (92, 227205), (99, 211140), (102, 204930), (108, 193545), (110, 190026), (115, 181764), (132, 158355), (135, 154836), (138, 151470), (153, 136620), (162, 129030), (165, 126684), (170, 122958), (180, 116127), (187, 111780), (198, 105570), (204, 102465), (207, 100980), (220, 95013), (230, 90882), (243, 86020), (253, 82620), (255, 81972), (270, 77418), (276, 75735), (297, 70380), (306, 68310), (324, 64515), (330, 63342), (340, 61479), (345, 60588), (374, 55890), (391, 53460), (396, 52785), (405, 51612), (414, 50490), (459, 45540), (460, 45441), (486, 43010), (495, 42228), (506, 41310), (510, 40986), (540, 38709), (561, 37260), (594, 35190), (612, 34155), (621, 33660), (660, 31671), (690, 30294), (748, 27945), (759, 27540), (765, 27324), (782, 26730), (810, 25806), (828, 25245), (891, 23460), (918, 22770), (935, 22356), (972, 21505), (990, 21114), (1012, 20655), (1020, 20493), (1035, 20196), (1122, 18630), (1173, 17820), (1188, 17595), (1215, 17204), (1242, 16830), (1265, 16524), (1377, 15180), (1380, 15147), (1485, 14076), (1518, 13770), (1530, 13662), (1564, 13365), (1620, 12903), (1683, 12420), (1782, 11730), (1836, 11385), (1863, 11220), (1870, 11178), (1955, 10692), (1980, 10557), (2070, 10098), (2244, 9315), (2277, 9180), (2295, 9108), (2346, 8910), (2430, 8602), (2484, 8415), (2530, 8262), (2673, 7820), (2754, 7590), (2805, 7452), (2970, 7038), (3036, 6885), (3060, 6831), (3105, 6732), (3366, 6210), (3519, 5940), (3564, 5865), (3726, 5610), (3740, 5589), (3795, 5508), (3910, 5346), (4131, 5060), (4140, 5049), (4301, 4860), (4455, 4692), (4554, 4590)]