251881588

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:385

約数の個数: 96

約数和(自身を含む): 561738240

約数和(自身を除く): 309856652

約数列:

[1, 2, 4, 7, 14, 17, 28, 29, 34, 58, 68, 71, 116, 119, 142, 203, 238, 257, 284, 406, 476, 493, 497, 514, 812, 986, 994, 1028, 1207, 1799, 1972, 1988, 2059, 2414, 3451, 3598, 4118, 4369, 4828, 6902, 7196, 7453, 8236, 8449, 8738, 13804, 14413, 14906, 16898, 17476, 18247, 28826, 29812, 30583, 33796, 35003, 36494, 52171, 57652, 61166, 70006, 72988, 104342, 122332, 126701, 127729, 140012, 208684, 245021, 253402, 255458, 310199, 490042, 506804, 510916, 529163, 620398, 886907, 980084, 1058326, 1240796, 1773814, 2116652, 2171393, 3547628, 3704141, 4342786, 7408282, 8685572, 8995771, 14816564, 17991542, 35983084, 62970397, 125940794, 251881588]

約数ペア:

[(1, 251881588), (2, 125940794), (4, 62970397), (7, 35983084), (14, 17991542), (17, 14816564), (28, 8995771), (29, 8685572), (34, 7408282), (58, 4342786), (68, 3704141), (71, 3547628), (116, 2171393), (119, 2116652), (142, 1773814), (203, 1240796), (238, 1058326), (257, 980084), (284, 886907), (406, 620398), (476, 529163), (493, 510916), (497, 506804), (514, 490042), (812, 310199), (986, 255458), (994, 253402), (1028, 245021), (1207, 208684), (1799, 140012), (1972, 127729), (1988, 126701), (2059, 122332), (2414, 104342), (3451, 72988), (3598, 70006), (4118, 61166), (4369, 57652), (4828, 52171), (6902, 36494), (7196, 35003), (7453, 33796), (8236, 30583), (8449, 29812), (8738, 28826), (13804, 18247), (14413, 17476), (14906, 16898)]