19487710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 21336290

約数列:

[1, 2, 5, 10, 11, 22, 29, 41, 55, 58, 82, 110, 145, 149, 205, 290, 298, 319, 410, 451, 638, 745, 902, 1189, 1490, 1595, 1639, 2255, 2378, 3190, 3278, 4321, 4510, 5945, 6109, 8195, 8642, 11890, 12218, 13079, 16390, 21605, 26158, 30545, 43210, 47531, 61090, 65395, 67199, 95062, 130790, 134398, 177161, 237655, 335995, 354322, 475310, 671990, 885805, 1771610, 1948771, 3897542, 9743855, 19487710]

約数ペア:

[(1, 19487710), (2, 9743855), (5, 3897542), (10, 1948771), (11, 1771610), (22, 885805), (29, 671990), (41, 475310), (55, 354322), (58, 335995), (82, 237655), (110, 177161), (145, 134398), (149, 130790), (205, 95062), (290, 67199), (298, 65395), (319, 61090), (410, 47531), (451, 43210), (638, 30545), (745, 26158), (902, 21605), (1189, 16390), (1490, 13079), (1595, 12218), (1639, 11890), (2255, 8642), (2378, 8195), (3190, 6109), (3278, 5945), (4321, 4510)]