857480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 2222640

約数和(自身を除く): 1365160

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 97, 104, 130, 136, 170, 194, 221, 260, 340, 388, 442, 485, 520, 680, 776, 884, 970, 1105, 1261, 1649, 1768, 1940, 2210, 2522, 3298, 3880, 4420, 5044, 6305, 6596, 8245, 8840, 10088, 12610, 13192, 16490, 21437, 25220, 32980, 42874, 50440, 65960, 85748, 107185, 171496, 214370, 428740, 857480]

約数ペア:

[(1, 857480), (2, 428740), (4, 214370), (5, 171496), (8, 107185), (10, 85748), (13, 65960), (17, 50440), (20, 42874), (26, 32980), (34, 25220), (40, 21437), (52, 16490), (65, 13192), (68, 12610), (85, 10088), (97, 8840), (104, 8245), (130, 6596), (136, 6305), (170, 5044), (194, 4420), (221, 3880), (260, 3298), (340, 2522), (388, 2210), (442, 1940), (485, 1768), (520, 1649), (680, 1261), (776, 1105), (884, 970)]