68031980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{557}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 148490496

約数和(自身を除く): 80458516

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 197, 310, 394, 557, 620, 788, 985, 1114, 1970, 2228, 2785, 3940, 5570, 6107, 11140, 12214, 17267, 24428, 30535, 34534, 61070, 69068, 86335, 109729, 122140, 172670, 219458, 345340, 438916, 548645, 1097290, 2194580, 3401599, 6803198, 13606396, 17007995, 34015990, 68031980]

約数ペア:

[(1, 68031980), (2, 34015990), (4, 17007995), (5, 13606396), (10, 6803198), (20, 3401599), (31, 2194580), (62, 1097290), (124, 548645), (155, 438916), (197, 345340), (310, 219458), (394, 172670), (557, 122140), (620, 109729), (788, 86335), (985, 69068), (1114, 61070), (1970, 34534), (2228, 30535), (2785, 24428), (3940, 17267), (5570, 12214), (6107, 11140)]