319913360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307609}}^1$

素因数の和:307635

約数の個数: 40

約数和(自身を含む): 801016440

約数和(自身を除く): 481103080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 307609, 615218, 1230436, 1538045, 2460872, 3076090, 3998917, 4921744, 6152180, 7997834, 12304360, 15995668, 19994585, 24608720, 31991336, 39989170, 63982672, 79978340, 159956680, 319913360]

約数ペア:

[(1, 319913360), (2, 159956680), (4, 79978340), (5, 63982672), (8, 39989170), (10, 31991336), (13, 24608720), (16, 19994585), (20, 15995668), (26, 12304360), (40, 7997834), (52, 6152180), (65, 4921744), (80, 3998917), (104, 3076090), (130, 2460872), (208, 1538045), (260, 1230436), (520, 615218), (1040, 307609)]