11681720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{419}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 28576800

約数和(自身を除く): 16895080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 419, 680, 697, 820, 838, 1394, 1640, 1676, 2095, 2788, 3352, 3485, 4190, 5576, 6970, 7123, 8380, 13940, 14246, 16760, 17179, 27880, 28492, 34358, 35615, 56984, 68716, 71230, 85895, 137432, 142460, 171790, 284920, 292043, 343580, 584086, 687160, 1168172, 1460215, 2336344, 2920430, 5840860, 11681720]

約数ペア:

[(1, 11681720), (2, 5840860), (4, 2920430), (5, 2336344), (8, 1460215), (10, 1168172), (17, 687160), (20, 584086), (34, 343580), (40, 292043), (41, 284920), (68, 171790), (82, 142460), (85, 137432), (136, 85895), (164, 71230), (170, 68716), (205, 56984), (328, 35615), (340, 34358), (410, 28492), (419, 27880), (680, 17179), (697, 16760), (820, 14246), (838, 13940), (1394, 8380), (1640, 7123), (1676, 6970), (2095, 5576), (2788, 4190), (3352, 3485)]