1911679968250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{18974491}}^1$

素因数の和:18974552

約数の個数: 64

約数和(自身を含む): 3978267890688

約数和(自身を除く): 2066587922438

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 125, 130, 155, 250, 310, 325, 403, 650, 775, 806, 1550, 1625, 2015, 3250, 3875, 4030, 7750, 10075, 20150, 50375, 100750, 18974491, 37948982, 94872455, 189744910, 246668383, 474362275, 493336766, 588209221, 948724550, 1176418442, 1233341915, 2371811375, 2466683830, 2941046105, 4743622750, 5882092210, 6166709575, 7646719873, 12333419150, 14705230525, 15293439746, 29410461050, 30833547875, 38233599365, 61667095750, 73526152625, 76467198730, 147052305250, 191167996825, 382335993650, 955839984125, 1911679968250]

約数ペア:

[(1, 1911679968250), (2, 955839984125), (5, 382335993650), (10, 191167996825), (13, 147052305250), (25, 76467198730), (26, 73526152625), (31, 61667095750), (50, 38233599365), (62, 30833547875), (65, 29410461050), (125, 15293439746), (130, 14705230525), (155, 12333419150), (250, 7646719873), (310, 6166709575), (325, 5882092210), (403, 4743622750), (650, 2941046105), (775, 2466683830), (806, 2371811375), (1550, 1233341915), (1625, 1176418442), (2015, 948724550), (3250, 588209221), (3875, 493336766), (4030, 474362275), (7750, 246668383), (10075, 189744910), (20150, 94872455), (50375, 37948982), (100750, 18974491)]