90815580

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1001

約数の個数: 120

約数和(自身を含む): 289877280

約数和(自身を除く): 199061700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 244, 270, 305, 324, 366, 405, 540, 549, 610, 732, 810, 915, 919, 1098, 1220, 1620, 1647, 1830, 1838, 2196, 2745, 2757, 3294, 3660, 3676, 4595, 4941, 5490, 5514, 6588, 8235, 8271, 9190, 9882, 10980, 11028, 13785, 16470, 16542, 18380, 19764, 24705, 24813, 27570, 32940, 33084, 41355, 49410, 49626, 55140, 56059, 74439, 82710, 98820, 99252, 112118, 124065, 148878, 165420, 168177, 224236, 248130, 280295, 297756, 336354, 372195, 496260, 504531, 560590, 672708, 744390, 840885, 1009062, 1121180, 1488780, 1513593, 1681770, 2018124, 2522655, 3027186, 3363540, 4540779, 5045310, 6054372, 7567965, 9081558, 10090620, 15135930, 18163116, 22703895, 30271860, 45407790, 90815580]

約数ペア:

[(1, 90815580), (2, 45407790), (3, 30271860), (4, 22703895), (5, 18163116), (6, 15135930), (9, 10090620), (10, 9081558), (12, 7567965), (15, 6054372), (18, 5045310), (20, 4540779), (27, 3363540), (30, 3027186), (36, 2522655), (45, 2018124), (54, 1681770), (60, 1513593), (61, 1488780), (81, 1121180), (90, 1009062), (108, 840885), (122, 744390), (135, 672708), (162, 560590), (180, 504531), (183, 496260), (244, 372195), (270, 336354), (305, 297756), (324, 280295), (366, 248130), (405, 224236), (540, 168177), (549, 165420), (610, 148878), (732, 124065), (810, 112118), (915, 99252), (919, 98820), (1098, 82710), (1220, 74439), (1620, 56059), (1647, 55140), (1830, 49626), (1838, 49410), (2196, 41355), (2745, 33084), (2757, 32940), (3294, 27570), (3660, 24813), (3676, 24705), (4595, 19764), (4941, 18380), (5490, 16542), (5514, 16470), (6588, 13785), (8235, 11028), (8271, 10980), (9190, 9882)]