638761452

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{13751}}^1$

素因数の和:13851

約数の個数: 72

約数和(自身を含む): 1755855360

約数和(自身を除く): 1117093908

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 79, 84, 98, 147, 158, 196, 237, 294, 316, 474, 553, 588, 948, 1106, 1659, 2212, 3318, 3871, 6636, 7742, 11613, 13751, 15484, 23226, 27502, 41253, 46452, 55004, 82506, 96257, 165012, 192514, 288771, 385028, 577542, 673799, 1086329, 1155084, 1347598, 2021397, 2172658, 2695196, 3258987, 4042794, 4345316, 6517974, 7604303, 8085588, 13035948, 15208606, 22812909, 30417212, 45625818, 53230121, 91251636, 106460242, 159690363, 212920484, 319380726, 638761452]

約数ペア:

[(1, 638761452), (2, 319380726), (3, 212920484), (4, 159690363), (6, 106460242), (7, 91251636), (12, 53230121), (14, 45625818), (21, 30417212), (28, 22812909), (42, 15208606), (49, 13035948), (79, 8085588), (84, 7604303), (98, 6517974), (147, 4345316), (158, 4042794), (196, 3258987), (237, 2695196), (294, 2172658), (316, 2021397), (474, 1347598), (553, 1155084), (588, 1086329), (948, 673799), (1106, 577542), (1659, 385028), (2212, 288771), (3318, 192514), (3871, 165012), (6636, 96257), (7742, 82506), (11613, 55004), (13751, 46452), (15484, 41253), (23226, 27502)]