18229860

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1$

素因数の和:77

約数の個数: 216

約数和(自身を含む): 65065728

約数和(自身を除く): 46835868

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 31, 33, 36, 44, 45, 54, 55, 60, 62, 66, 81, 90, 93, 99, 108, 110, 121, 124, 132, 135, 155, 162, 165, 180, 186, 198, 220, 242, 243, 270, 279, 297, 310, 324, 330, 341, 363, 372, 396, 405, 465, 484, 486, 495, 540, 558, 594, 605, 620, 660, 682, 726, 810, 837, 891, 930, 972, 990, 1023, 1089, 1116, 1188, 1210, 1215, 1364, 1395, 1452, 1485, 1620, 1674, 1705, 1782, 1815, 1860, 1980, 2046, 2178, 2420, 2430, 2511, 2673, 2790, 2970, 3069, 3267, 3348, 3410, 3564, 3630, 3751, 4092, 4185, 4356, 4455, 4860, 5022, 5115, 5346, 5445, 5580, 5940, 6138, 6534, 6820, 7260, 7502, 7533, 8370, 8910, 9207, 9801, 10044, 10230, 10692, 10890, 11253, 12276, 12555, 13068, 13365, 15004, 15066, 15345, 16335, 16740, 17820, 18414, 18755, 19602, 20460, 21780, 22506, 25110, 26730, 27621, 29403, 30132, 30690, 32670, 33759, 36828, 37510, 37665, 39204, 45012, 46035, 49005, 50220, 53460, 55242, 56265, 58806, 61380, 65340, 67518, 75020, 75330, 82863, 92070, 98010, 101277, 110484, 112530, 117612, 135036, 138105, 147015, 150660, 165726, 168795, 184140, 196020, 202554, 225060, 276210, 294030, 303831, 331452, 337590, 405108, 414315, 506385, 552420, 588060, 607662, 675180, 828630, 911493, 1012770, 1215324, 1519155, 1657260, 1822986, 2025540, 3038310, 3645972, 4557465, 6076620, 9114930, 18229860]

約数ペア:

[(1, 18229860), (2, 9114930), (3, 6076620), (4, 4557465), (5, 3645972), (6, 3038310), (9, 2025540), (10, 1822986), (11, 1657260), (12, 1519155), (15, 1215324), (18, 1012770), (20, 911493), (22, 828630), (27, 675180), (30, 607662), (31, 588060), (33, 552420), (36, 506385), (44, 414315), (45, 405108), (54, 337590), (55, 331452), (60, 303831), (62, 294030), (66, 276210), (81, 225060), (90, 202554), (93, 196020), (99, 184140), (108, 168795), (110, 165726), (121, 150660), (124, 147015), (132, 138105), (135, 135036), (155, 117612), (162, 112530), (165, 110484), (180, 101277), (186, 98010), (198, 92070), (220, 82863), (242, 75330), (243, 75020), (270, 67518), (279, 65340), (297, 61380), (310, 58806), (324, 56265), (330, 55242), (341, 53460), (363, 50220), (372, 49005), (396, 46035), (405, 45012), (465, 39204), (484, 37665), (486, 37510), (495, 36828), (540, 33759), (558, 32670), (594, 30690), (605, 30132), (620, 29403), (660, 27621), (682, 26730), (726, 25110), (810, 22506), (837, 21780), (891, 20460), (930, 19602), (972, 18755), (990, 18414), (1023, 17820), (1089, 16740), (1116, 16335), (1188, 15345), (1210, 15066), (1215, 15004), (1364, 13365), (1395, 13068), (1452, 12555), (1485, 12276), (1620, 11253), (1674, 10890), (1705, 10692), (1782, 10230), (1815, 10044), (1860, 9801), (1980, 9207), (2046, 8910), (2178, 8370), (2420, 7533), (2430, 7502), (2511, 7260), (2673, 6820), (2790, 6534), (2970, 6138), (3069, 5940), (3267, 5580), (3348, 5445), (3410, 5346), (3564, 5115), (3630, 5022), (3751, 4860), (4092, 4455), (4185, 4356)]