393315980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1\times {\mathrm{1471}}^1$

素因数の和:1970

約数の個数: 48

約数和(自身を含む): 856880640

約数和(自身を除く): 463564660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 461, 580, 922, 1471, 1844, 2305, 2942, 4610, 5884, 7355, 9220, 13369, 14710, 26738, 29420, 42659, 53476, 66845, 85318, 133690, 170636, 213295, 267380, 426590, 678131, 853180, 1356262, 2712524, 3390655, 6781310, 13562620, 19665799, 39331598, 78663196, 98328995, 196657990, 393315980]

約数ペア:

[(1, 393315980), (2, 196657990), (4, 98328995), (5, 78663196), (10, 39331598), (20, 19665799), (29, 13562620), (58, 6781310), (116, 3390655), (145, 2712524), (290, 1356262), (461, 853180), (580, 678131), (922, 426590), (1471, 267380), (1844, 213295), (2305, 170636), (2942, 133690), (4610, 85318), (5884, 66845), (7355, 53476), (9220, 42659), (13369, 29420), (14710, 26738)]