16528720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:740

約数の個数: 80

約数和(自身を含む): 43247232

約数和(自身を除く): 26718512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 691, 920, 1040, 1196, 1382, 1495, 1840, 2392, 2764, 2990, 3455, 4784, 5528, 5980, 6910, 8983, 11056, 11960, 13820, 15893, 17966, 23920, 27640, 31786, 35932, 44915, 55280, 63572, 71864, 79465, 89830, 127144, 143728, 158930, 179660, 206609, 254288, 317860, 359320, 413218, 635720, 718640, 826436, 1033045, 1271440, 1652872, 2066090, 3305744, 4132180, 8264360, 16528720]

約数ペア:

[(1, 16528720), (2, 8264360), (4, 4132180), (5, 3305744), (8, 2066090), (10, 1652872), (13, 1271440), (16, 1033045), (20, 826436), (23, 718640), (26, 635720), (40, 413218), (46, 359320), (52, 317860), (65, 254288), (80, 206609), (92, 179660), (104, 158930), (115, 143728), (130, 127144), (184, 89830), (208, 79465), (230, 71864), (260, 63572), (299, 55280), (368, 44915), (460, 35932), (520, 31786), (598, 27640), (691, 23920), (920, 17966), (1040, 15893), (1196, 13820), (1382, 11960), (1495, 11056), (1840, 8983), (2392, 6910), (2764, 5980), (2990, 5528), (3455, 4784)]