31481688

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 97182720

約数和(自身を除く): 65701032

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 73, 84, 102, 119, 136, 146, 151, 168, 204, 219, 238, 292, 302, 357, 408, 438, 453, 476, 511, 584, 604, 714, 876, 906, 952, 1022, 1057, 1208, 1241, 1428, 1533, 1752, 1812, 2044, 2114, 2482, 2567, 2856, 3066, 3171, 3624, 3723, 4088, 4228, 4964, 5134, 6132, 6342, 7446, 7701, 8456, 8687, 9928, 10268, 11023, 12264, 12684, 14892, 15402, 17374, 17969, 20536, 22046, 25368, 26061, 29784, 30804, 33069, 34748, 35938, 44092, 52122, 53907, 61608, 66138, 69496, 71876, 77161, 88184, 104244, 107814, 132276, 143752, 154322, 187391, 208488, 215628, 231483, 264552, 308644, 374782, 431256, 462966, 562173, 617288, 749564, 925932, 1124346, 1311737, 1499128, 1851864, 2248692, 2623474, 3935211, 4497384, 5246948, 7870422, 10493896, 15740844, 31481688]

約数ペア:

[(1, 31481688), (2, 15740844), (3, 10493896), (4, 7870422), (6, 5246948), (7, 4497384), (8, 3935211), (12, 2623474), (14, 2248692), (17, 1851864), (21, 1499128), (24, 1311737), (28, 1124346), (34, 925932), (42, 749564), (51, 617288), (56, 562173), (68, 462966), (73, 431256), (84, 374782), (102, 308644), (119, 264552), (136, 231483), (146, 215628), (151, 208488), (168, 187391), (204, 154322), (219, 143752), (238, 132276), (292, 107814), (302, 104244), (357, 88184), (408, 77161), (438, 71876), (453, 69496), (476, 66138), (511, 61608), (584, 53907), (604, 52122), (714, 44092), (876, 35938), (906, 34748), (952, 33069), (1022, 30804), (1057, 29784), (1208, 26061), (1241, 25368), (1428, 22046), (1533, 20536), (1752, 17969), (1812, 17374), (2044, 15402), (2114, 14892), (2482, 12684), (2567, 12264), (2856, 11023), (3066, 10268), (3171, 9928), (3624, 8687), (3723, 8456), (4088, 7701), (4228, 7446), (4964, 6342), (5134, 6132)]