18608720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{617}}^1$

素因数の和:672

約数の個数: 80

約数和(自身を含む): 48278160

約数和(自身を除く): 29669440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 617, 754, 1040, 1160, 1234, 1508, 1885, 2320, 2468, 3016, 3085, 3770, 4936, 6032, 6170, 7540, 8021, 9872, 12340, 15080, 16042, 17893, 24680, 30160, 32084, 35786, 40105, 49360, 64168, 71572, 80210, 89465, 128336, 143144, 160420, 178930, 232609, 286288, 320840, 357860, 465218, 641680, 715720, 930436, 1163045, 1431440, 1860872, 2326090, 3721744, 4652180, 9304360, 18608720]

約数ペア:

[(1, 18608720), (2, 9304360), (4, 4652180), (5, 3721744), (8, 2326090), (10, 1860872), (13, 1431440), (16, 1163045), (20, 930436), (26, 715720), (29, 641680), (40, 465218), (52, 357860), (58, 320840), (65, 286288), (80, 232609), (104, 178930), (116, 160420), (130, 143144), (145, 128336), (208, 89465), (232, 80210), (260, 71572), (290, 64168), (377, 49360), (464, 40105), (520, 35786), (580, 32084), (617, 30160), (754, 24680), (1040, 17893), (1160, 16042), (1234, 15080), (1508, 12340), (1885, 9872), (2320, 8021), (2468, 7540), (3016, 6170), (3085, 6032), (3770, 4936)]