25620088

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 56216160

約数和(自身を除く): 30596072

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 43, 52, 68, 86, 104, 136, 172, 221, 337, 344, 442, 559, 674, 731, 884, 1118, 1348, 1462, 1768, 2236, 2696, 2924, 4381, 4472, 5729, 5848, 8762, 9503, 11458, 14491, 17524, 19006, 22916, 28982, 35048, 38012, 45832, 57964, 74477, 76024, 115928, 148954, 188383, 246347, 297908, 376766, 492694, 595816, 753532, 985388, 1507064, 1970776, 3202511, 6405022, 12810044, 25620088]

約数ペア:

[(1, 25620088), (2, 12810044), (4, 6405022), (8, 3202511), (13, 1970776), (17, 1507064), (26, 985388), (34, 753532), (43, 595816), (52, 492694), (68, 376766), (86, 297908), (104, 246347), (136, 188383), (172, 148954), (221, 115928), (337, 76024), (344, 74477), (442, 57964), (559, 45832), (674, 38012), (731, 35048), (884, 28982), (1118, 22916), (1348, 19006), (1462, 17524), (1768, 14491), (2236, 11458), (2696, 9503), (2924, 8762), (4381, 5848), (4472, 5729)]