19659984800

素因数分解:

$2^5\times 5^2\times {\mathrm{2539}}^1\times {\mathrm{9679}}^1$

素因数の和:12238

約数の個数: 72

約数和(自身を含む): 48018801600

約数和(自身を除く): 28358816800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 2539, 5078, 9679, 10156, 12695, 19358, 20312, 25390, 38716, 40624, 48395, 50780, 63475, 77432, 81248, 96790, 101560, 126950, 154864, 193580, 203120, 241975, 253900, 309728, 387160, 406240, 483950, 507800, 774320, 967900, 1015600, 1548640, 1935800, 2031200, 3871600, 7743200, 24574981, 49149962, 98299924, 122874905, 196599848, 245749810, 393199696, 491499620, 614374525, 786399392, 982999240, 1228749050, 1965998480, 2457498100, 3931996960, 4914996200, 9829992400, 19659984800]

約数ペア:

[(1, 19659984800), (2, 9829992400), (4, 4914996200), (5, 3931996960), (8, 2457498100), (10, 1965998480), (16, 1228749050), (20, 982999240), (25, 786399392), (32, 614374525), (40, 491499620), (50, 393199696), (80, 245749810), (100, 196599848), (160, 122874905), (200, 98299924), (400, 49149962), (800, 24574981), (2539, 7743200), (5078, 3871600), (9679, 2031200), (10156, 1935800), (12695, 1548640), (19358, 1015600), (20312, 967900), (25390, 774320), (38716, 507800), (40624, 483950), (48395, 406240), (50780, 387160), (63475, 309728), (77432, 253900), (81248, 241975), (96790, 203120), (101560, 193580), (126950, 154864)]