19814704

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:498

約数の個数: 80

約数和(自身を含む): 48885760

約数和(自身を除く): 29071056

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 439, 496, 728, 806, 868, 878, 1456, 1612, 1736, 1756, 2821, 3073, 3224, 3472, 3512, 5642, 5707, 6146, 6448, 7024, 11284, 11414, 12292, 13609, 22568, 22828, 24584, 27218, 39949, 45136, 45656, 49168, 54436, 79898, 91312, 95263, 108872, 159796, 176917, 190526, 217744, 319592, 353834, 381052, 639184, 707668, 762104, 1238419, 1415336, 1524208, 2476838, 2830672, 4953676, 9907352, 19814704]

約数ペア:

[(1, 19814704), (2, 9907352), (4, 4953676), (7, 2830672), (8, 2476838), (13, 1524208), (14, 1415336), (16, 1238419), (26, 762104), (28, 707668), (31, 639184), (52, 381052), (56, 353834), (62, 319592), (91, 217744), (104, 190526), (112, 176917), (124, 159796), (182, 108872), (208, 95263), (217, 91312), (248, 79898), (364, 54436), (403, 49168), (434, 45656), (439, 45136), (496, 39949), (728, 27218), (806, 24584), (868, 22828), (878, 22568), (1456, 13609), (1612, 12292), (1736, 11414), (1756, 11284), (2821, 7024), (3073, 6448), (3224, 6146), (3472, 5707), (3512, 5642)]