90918990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:551

約数の個数: 128

約数和(自身を含む): 262656000

約数和(自身を除く): 171737010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 37, 38, 45, 54, 57, 74, 90, 95, 111, 114, 135, 171, 185, 190, 222, 270, 285, 333, 342, 370, 479, 513, 555, 570, 666, 703, 855, 958, 999, 1026, 1110, 1406, 1437, 1665, 1710, 1998, 2109, 2395, 2565, 2874, 3330, 3515, 4218, 4311, 4790, 4995, 5130, 6327, 7030, 7185, 8622, 9101, 9990, 10545, 12654, 12933, 14370, 17723, 18202, 18981, 21090, 21555, 25866, 27303, 31635, 35446, 37962, 43110, 45505, 53169, 54606, 63270, 64665, 81909, 88615, 91010, 94905, 106338, 129330, 136515, 159507, 163818, 177230, 189810, 245727, 265845, 273030, 319014, 336737, 409545, 478521, 491454, 531690, 673474, 797535, 819090, 957042, 1010211, 1228635, 1595070, 1683685, 2020422, 2392605, 2457270, 3030633, 3367370, 4785210, 5051055, 6061266, 9091899, 10102110, 15153165, 18183798, 30306330, 45459495, 90918990]

約数ペア:

[(1, 90918990), (2, 45459495), (3, 30306330), (5, 18183798), (6, 15153165), (9, 10102110), (10, 9091899), (15, 6061266), (18, 5051055), (19, 4785210), (27, 3367370), (30, 3030633), (37, 2457270), (38, 2392605), (45, 2020422), (54, 1683685), (57, 1595070), (74, 1228635), (90, 1010211), (95, 957042), (111, 819090), (114, 797535), (135, 673474), (171, 531690), (185, 491454), (190, 478521), (222, 409545), (270, 336737), (285, 319014), (333, 273030), (342, 265845), (370, 245727), (479, 189810), (513, 177230), (555, 163818), (570, 159507), (666, 136515), (703, 129330), (855, 106338), (958, 94905), (999, 91010), (1026, 88615), (1110, 81909), (1406, 64665), (1437, 63270), (1665, 54606), (1710, 53169), (1998, 45505), (2109, 43110), (2395, 37962), (2565, 35446), (2874, 31635), (3330, 27303), (3515, 25866), (4218, 21555), (4311, 21090), (4790, 18981), (4995, 18202), (5130, 17723), (6327, 14370), (7030, 12933), (7185, 12654), (8622, 10545), (9101, 9990)]