61664240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:990

約数の個数: 80

約数和(自身を含む): 158561280

約数和(自身を除く): 96897040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 316, 395, 440, 632, 790, 869, 880, 887, 1264, 1580, 1738, 1774, 3160, 3476, 3548, 4345, 4435, 6320, 6952, 7096, 8690, 8870, 9757, 13904, 14192, 17380, 17740, 19514, 34760, 35480, 39028, 48785, 69520, 70073, 70960, 78056, 97570, 140146, 156112, 195140, 280292, 350365, 390280, 560584, 700730, 770803, 780560, 1121168, 1401460, 1541606, 2802920, 3083212, 3854015, 5605840, 6166424, 7708030, 12332848, 15416060, 30832120, 61664240]

約数ペア:

[(1, 61664240), (2, 30832120), (4, 15416060), (5, 12332848), (8, 7708030), (10, 6166424), (11, 5605840), (16, 3854015), (20, 3083212), (22, 2802920), (40, 1541606), (44, 1401460), (55, 1121168), (79, 780560), (80, 770803), (88, 700730), (110, 560584), (158, 390280), (176, 350365), (220, 280292), (316, 195140), (395, 156112), (440, 140146), (632, 97570), (790, 78056), (869, 70960), (880, 70073), (887, 69520), (1264, 48785), (1580, 39028), (1738, 35480), (1774, 34760), (3160, 19514), (3476, 17740), (3548, 17380), (4345, 14192), (4435, 13904), (6320, 9757), (6952, 8870), (7096, 8690)]