816752560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{9941}}^1$

素因数の和:10046

約数の個数: 80

約数和(自身を含む): 2071117440

約数和(自身を除く): 1254364880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 316, 395, 520, 632, 790, 1027, 1040, 1264, 1580, 2054, 3160, 4108, 5135, 6320, 8216, 9941, 10270, 16432, 19882, 20540, 39764, 41080, 49705, 79528, 82160, 99410, 129233, 159056, 198820, 258466, 397640, 516932, 646165, 785339, 795280, 1033864, 1292330, 1570678, 2067728, 2584660, 3141356, 3926695, 5169320, 6282712, 7853390, 10209407, 10338640, 12565424, 15706780, 20418814, 31413560, 40837628, 51047035, 62827120, 81675256, 102094070, 163350512, 204188140, 408376280, 816752560]

約数ペア:

[(1, 816752560), (2, 408376280), (4, 204188140), (5, 163350512), (8, 102094070), (10, 81675256), (13, 62827120), (16, 51047035), (20, 40837628), (26, 31413560), (40, 20418814), (52, 15706780), (65, 12565424), (79, 10338640), (80, 10209407), (104, 7853390), (130, 6282712), (158, 5169320), (208, 3926695), (260, 3141356), (316, 2584660), (395, 2067728), (520, 1570678), (632, 1292330), (790, 1033864), (1027, 795280), (1040, 785339), (1264, 646165), (1580, 516932), (2054, 397640), (3160, 258466), (4108, 198820), (5135, 159056), (6320, 129233), (8216, 99410), (9941, 82160), (10270, 79528), (16432, 49705), (19882, 41080), (20540, 39764)]