71298760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4423}}^1$

素因数の和:4478

約数の個数: 64

約数和(自身を含む): 178375680

約数和(自身を除く): 107076920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 4423, 8060, 8846, 16120, 17692, 22115, 35384, 44230, 57499, 88460, 114998, 137113, 176920, 229996, 274226, 287495, 459992, 548452, 574990, 685565, 1096904, 1149980, 1371130, 1782469, 2299960, 2742260, 3564938, 5484520, 7129876, 8912345, 14259752, 17824690, 35649380, 71298760]

約数ペア:

[(1, 71298760), (2, 35649380), (4, 17824690), (5, 14259752), (8, 8912345), (10, 7129876), (13, 5484520), (20, 3564938), (26, 2742260), (31, 2299960), (40, 1782469), (52, 1371130), (62, 1149980), (65, 1096904), (104, 685565), (124, 574990), (130, 548452), (155, 459992), (248, 287495), (260, 274226), (310, 229996), (403, 176920), (520, 137113), (620, 114998), (806, 88460), (1240, 57499), (1612, 44230), (2015, 35384), (3224, 22115), (4030, 17692), (4423, 16120), (8060, 8846)]