82380520

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 191678400

約数和(自身を除く): 109297880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 67, 118, 134, 236, 268, 295, 335, 472, 521, 536, 590, 670, 1042, 1180, 1340, 2084, 2360, 2605, 2680, 3953, 4168, 5210, 7906, 10420, 15812, 19765, 20840, 30739, 31624, 34907, 39530, 61478, 69814, 79060, 122956, 139628, 153695, 158120, 174535, 245912, 279256, 307390, 349070, 614780, 698140, 1229560, 1396280, 2059513, 4119026, 8238052, 10297565, 16476104, 20595130, 41190260, 82380520]

約数ペア:

[(1, 82380520), (2, 41190260), (4, 20595130), (5, 16476104), (8, 10297565), (10, 8238052), (20, 4119026), (40, 2059513), (59, 1396280), (67, 1229560), (118, 698140), (134, 614780), (236, 349070), (268, 307390), (295, 279256), (335, 245912), (472, 174535), (521, 158120), (536, 153695), (590, 139628), (670, 122956), (1042, 79060), (1180, 69814), (1340, 61478), (2084, 39530), (2360, 34907), (2605, 31624), (2680, 30739), (3953, 20840), (4168, 19765), (5210, 15812), (7906, 10420)]