25738880

素因数分解:

$2^7\times 5^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 62203680

約数和(自身を除く): 36464800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 262, 307, 320, 524, 614, 640, 655, 1048, 1228, 1310, 1535, 2096, 2456, 2620, 3070, 4192, 4912, 5240, 6140, 8384, 9824, 10480, 12280, 16768, 19648, 20960, 24560, 39296, 40217, 41920, 49120, 80434, 83840, 98240, 160868, 196480, 201085, 321736, 402170, 643472, 804340, 1286944, 1608680, 2573888, 3217360, 5147776, 6434720, 12869440, 25738880]

約数ペア:

[(1, 25738880), (2, 12869440), (4, 6434720), (5, 5147776), (8, 3217360), (10, 2573888), (16, 1608680), (20, 1286944), (32, 804340), (40, 643472), (64, 402170), (80, 321736), (128, 201085), (131, 196480), (160, 160868), (262, 98240), (307, 83840), (320, 80434), (524, 49120), (614, 41920), (640, 40217), (655, 39296), (1048, 24560), (1228, 20960), (1310, 19648), (1535, 16768), (2096, 12280), (2456, 10480), (2620, 9824), (3070, 8384), (4192, 6140), (4912, 5240)]