81662608

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 176328000

約数和(自身を除く): 94665392

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 59, 76, 116, 118, 152, 157, 232, 236, 304, 314, 464, 472, 551, 628, 944, 1102, 1121, 1256, 1711, 2204, 2242, 2512, 2983, 3422, 4408, 4484, 4553, 5966, 6844, 8816, 8968, 9106, 9263, 11932, 13688, 17936, 18212, 18526, 23864, 27376, 32509, 36424, 37052, 47728, 65018, 72848, 74104, 86507, 130036, 148208, 173014, 175997, 260072, 268627, 346028, 351994, 520144, 537254, 692056, 703988, 1074508, 1384112, 1407976, 2149016, 2815952, 4298032, 5103913, 10207826, 20415652, 40831304, 81662608]

約数ペア:

[(1, 81662608), (2, 40831304), (4, 20415652), (8, 10207826), (16, 5103913), (19, 4298032), (29, 2815952), (38, 2149016), (58, 1407976), (59, 1384112), (76, 1074508), (116, 703988), (118, 692056), (152, 537254), (157, 520144), (232, 351994), (236, 346028), (304, 268627), (314, 260072), (464, 175997), (472, 173014), (551, 148208), (628, 130036), (944, 86507), (1102, 74104), (1121, 72848), (1256, 65018), (1711, 47728), (2204, 37052), (2242, 36424), (2512, 32509), (2983, 27376), (3422, 23864), (4408, 18526), (4484, 18212), (4553, 17936), (5966, 13688), (6844, 11932), (8816, 9263), (8968, 9106)]