28530920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1063}}^1$

素因数の和:1146

約数の個数: 64

約数和(自身を含む): 71245440

約数和(自身を除く): 42714520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1063, 1220, 1342, 2126, 2440, 2684, 3355, 4252, 5315, 5368, 6710, 8504, 10630, 11693, 13420, 21260, 23386, 26840, 42520, 46772, 58465, 64843, 93544, 116930, 129686, 233860, 259372, 324215, 467720, 518744, 648430, 713273, 1296860, 1426546, 2593720, 2853092, 3566365, 5706184, 7132730, 14265460, 28530920]

約数ペア:

[(1, 28530920), (2, 14265460), (4, 7132730), (5, 5706184), (8, 3566365), (10, 2853092), (11, 2593720), (20, 1426546), (22, 1296860), (40, 713273), (44, 648430), (55, 518744), (61, 467720), (88, 324215), (110, 259372), (122, 233860), (220, 129686), (244, 116930), (305, 93544), (440, 64843), (488, 58465), (610, 46772), (671, 42520), (1063, 26840), (1220, 23386), (1342, 21260), (2126, 13420), (2440, 11693), (2684, 10630), (3355, 8504), (4252, 6710), (5315, 5368)]