20120653150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{71821}}^1$

素因数の和:72277

約数の個数: 48

約数和(自身を含む): 40397289408

約数和(自身を除く): 20276636258

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 431, 650, 862, 2155, 4310, 5603, 10775, 11206, 21550, 28015, 56030, 71821, 140075, 143642, 280150, 359105, 718210, 933673, 1795525, 1867346, 3591050, 4668365, 9336730, 23341825, 30954851, 46683650, 61909702, 154774255, 309548510, 402413063, 773871275, 804826126, 1547742550, 2012065315, 4024130630, 10060326575, 20120653150]

約数ペア:

[(1, 20120653150), (2, 10060326575), (5, 4024130630), (10, 2012065315), (13, 1547742550), (25, 804826126), (26, 773871275), (50, 402413063), (65, 309548510), (130, 154774255), (325, 61909702), (431, 46683650), (650, 30954851), (862, 23341825), (2155, 9336730), (4310, 4668365), (5603, 3591050), (10775, 1867346), (11206, 1795525), (21550, 933673), (28015, 718210), (56030, 359105), (71821, 280150), (140075, 143642)]