20120460100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{499267}}^1$

素因数の和:499325

約数の個数: 72

約数和(自身を含む): 48536837888

約数和(自身を除く): 28416377788

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 3100, 4030, 8060, 10075, 20150, 40300, 499267, 998534, 1997068, 2496335, 4992670, 6490471, 9985340, 12481675, 12980942, 15477277, 24963350, 25961884, 30954554, 32452355, 49926700, 61909108, 64904710, 77386385, 129809420, 154772770, 162261775, 201204601, 309545540, 324523550, 386931925, 402409202, 649047100, 773863850, 804818404, 1006023005, 1547727700, 2012046010, 4024092020, 5030115025, 10060230050, 20120460100]

約数ペア:

[(1, 20120460100), (2, 10060230050), (4, 5030115025), (5, 4024092020), (10, 2012046010), (13, 1547727700), (20, 1006023005), (25, 804818404), (26, 773863850), (31, 649047100), (50, 402409202), (52, 386931925), (62, 324523550), (65, 309545540), (100, 201204601), (124, 162261775), (130, 154772770), (155, 129809420), (260, 77386385), (310, 64904710), (325, 61909108), (403, 49926700), (620, 32452355), (650, 30954554), (775, 25961884), (806, 24963350), (1300, 15477277), (1550, 12980942), (1612, 12481675), (2015, 9985340), (3100, 6490471), (4030, 4992670), (8060, 2496335), (10075, 1997068), (20150, 998534), (40300, 499267)]