20091240

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:95

約数の個数: 224

約数和(自身を含む): 74367720

約数和(自身を除く): 54276480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 53, 54, 60, 65, 72, 78, 81, 90, 104, 106, 108, 117, 120, 130, 135, 156, 159, 162, 180, 195, 212, 216, 234, 243, 260, 265, 270, 312, 318, 324, 351, 360, 390, 405, 424, 468, 477, 486, 520, 530, 540, 585, 636, 648, 689, 702, 729, 780, 795, 810, 936, 954, 972, 1053, 1060, 1080, 1170, 1215, 1272, 1378, 1404, 1431, 1458, 1560, 1590, 1620, 1755, 1908, 1944, 2067, 2106, 2120, 2340, 2385, 2430, 2756, 2808, 2862, 2916, 3159, 3180, 3240, 3445, 3510, 3645, 3816, 4134, 4212, 4293, 4680, 4770, 4860, 5265, 5512, 5724, 5832, 6201, 6318, 6360, 6890, 7020, 7155, 7290, 8268, 8424, 8586, 9477, 9540, 9720, 10335, 10530, 11448, 12402, 12636, 12879, 13780, 14040, 14310, 14580, 15795, 16536, 17172, 18603, 18954, 19080, 20670, 21060, 21465, 24804, 25272, 25758, 27560, 28620, 29160, 31005, 31590, 34344, 37206, 37908, 38637, 41340, 42120, 42930, 47385, 49608, 51516, 55809, 57240, 62010, 63180, 64395, 74412, 75816, 77274, 82680, 85860, 93015, 94770, 103032, 111618, 124020, 126360, 128790, 148824, 154548, 167427, 171720, 186030, 189540, 193185, 223236, 248040, 257580, 279045, 309096, 334854, 372060, 379080, 386370, 446472, 502281, 515160, 558090, 669708, 744120, 772740, 837135, 1004562, 1116180, 1339416, 1545480, 1674270, 2009124, 2232360, 2511405, 3348540, 4018248, 5022810, 6697080, 10045620, 20091240]

約数ペア:

[(1, 20091240), (2, 10045620), (3, 6697080), (4, 5022810), (5, 4018248), (6, 3348540), (8, 2511405), (9, 2232360), (10, 2009124), (12, 1674270), (13, 1545480), (15, 1339416), (18, 1116180), (20, 1004562), (24, 837135), (26, 772740), (27, 744120), (30, 669708), (36, 558090), (39, 515160), (40, 502281), (45, 446472), (52, 386370), (53, 379080), (54, 372060), (60, 334854), (65, 309096), (72, 279045), (78, 257580), (81, 248040), (90, 223236), (104, 193185), (106, 189540), (108, 186030), (117, 171720), (120, 167427), (130, 154548), (135, 148824), (156, 128790), (159, 126360), (162, 124020), (180, 111618), (195, 103032), (212, 94770), (216, 93015), (234, 85860), (243, 82680), (260, 77274), (265, 75816), (270, 74412), (312, 64395), (318, 63180), (324, 62010), (351, 57240), (360, 55809), (390, 51516), (405, 49608), (424, 47385), (468, 42930), (477, 42120), (486, 41340), (520, 38637), (530, 37908), (540, 37206), (585, 34344), (636, 31590), (648, 31005), (689, 29160), (702, 28620), (729, 27560), (780, 25758), (795, 25272), (810, 24804), (936, 21465), (954, 21060), (972, 20670), (1053, 19080), (1060, 18954), (1080, 18603), (1170, 17172), (1215, 16536), (1272, 15795), (1378, 14580), (1404, 14310), (1431, 14040), (1458, 13780), (1560, 12879), (1590, 12636), (1620, 12402), (1755, 11448), (1908, 10530), (1944, 10335), (2067, 9720), (2106, 9540), (2120, 9477), (2340, 8586), (2385, 8424), (2430, 8268), (2756, 7290), (2808, 7155), (2862, 7020), (2916, 6890), (3159, 6360), (3180, 6318), (3240, 6201), (3445, 5832), (3510, 5724), (3645, 5512), (3816, 5265), (4134, 4860), (4212, 4770), (4293, 4680)]