20804900110

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{3373}}^1$

素因数の和:3709

約数の個数: 64

約数和(自身を含む): 39249391104

約数和(自身を除く): 18444490994

約数列:

[1, 2, 5, 10, 31, 62, 101, 155, 197, 202, 310, 394, 505, 985, 1010, 1970, 3131, 3373, 6107, 6262, 6746, 12214, 15655, 16865, 19897, 30535, 31310, 33730, 39794, 61070, 99485, 104563, 198970, 209126, 340673, 522815, 616807, 664481, 681346, 1045630, 1233614, 1328962, 1703365, 3084035, 3322405, 3406730, 6168070, 6644810, 10560863, 20598911, 21121726, 41197822, 52804315, 67112581, 102994555, 105608630, 134225162, 205989110, 335562905, 671125810, 2080490011, 4160980022, 10402450055, 20804900110]

約数ペア:

[(1, 20804900110), (2, 10402450055), (5, 4160980022), (10, 2080490011), (31, 671125810), (62, 335562905), (101, 205989110), (155, 134225162), (197, 105608630), (202, 102994555), (310, 67112581), (394, 52804315), (505, 41197822), (985, 21121726), (1010, 20598911), (1970, 10560863), (3131, 6644810), (3373, 6168070), (6107, 3406730), (6262, 3322405), (6746, 3084035), (12214, 1703365), (15655, 1328962), (16865, 1233614), (19897, 1045630), (30535, 681346), (31310, 664481), (33730, 616807), (39794, 522815), (61070, 340673), (99485, 209126), (104563, 198970)]