641261920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{10631}}^1$

素因数の和:10688

約数の個数: 96

約数和(自身を含む): 1687936320

約数和(自身を除く): 1046674400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 65, 80, 104, 116, 130, 145, 160, 208, 232, 260, 290, 377, 416, 464, 520, 580, 754, 928, 1040, 1160, 1508, 1885, 2080, 2320, 3016, 3770, 4640, 6032, 7540, 10631, 12064, 15080, 21262, 30160, 42524, 53155, 60320, 85048, 106310, 138203, 170096, 212620, 276406, 308299, 340192, 425240, 552812, 616598, 691015, 850480, 1105624, 1233196, 1382030, 1541495, 1700960, 2211248, 2466392, 2764060, 3082990, 4007887, 4422496, 4932784, 5528120, 6165980, 8015774, 9865568, 11056240, 12331960, 16031548, 20039435, 22112480, 24663920, 32063096, 40078870, 49327840, 64126192, 80157740, 128252384, 160315480, 320630960, 641261920]

約数ペア:

[(1, 641261920), (2, 320630960), (4, 160315480), (5, 128252384), (8, 80157740), (10, 64126192), (13, 49327840), (16, 40078870), (20, 32063096), (26, 24663920), (29, 22112480), (32, 20039435), (40, 16031548), (52, 12331960), (58, 11056240), (65, 9865568), (80, 8015774), (104, 6165980), (116, 5528120), (130, 4932784), (145, 4422496), (160, 4007887), (208, 3082990), (232, 2764060), (260, 2466392), (290, 2211248), (377, 1700960), (416, 1541495), (464, 1382030), (520, 1233196), (580, 1105624), (754, 850480), (928, 691015), (1040, 616598), (1160, 552812), (1508, 425240), (1885, 340192), (2080, 308299), (2320, 276406), (3016, 212620), (3770, 170096), (4640, 138203), (6032, 106310), (7540, 85048), (10631, 60320), (12064, 53155), (15080, 42524), (21262, 30160)]