320768060

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1\times {\mathrm{569}}^1$

素因数の和:1046

約数の個数: 48

約数和(自身を含む): 686024640

約数和(自身を除く): 365256580

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 397, 569, 710, 794, 1138, 1420, 1588, 1985, 2276, 2845, 3970, 5690, 7940, 11380, 28187, 40399, 56374, 80798, 112748, 140935, 161596, 201995, 225893, 281870, 403990, 451786, 563740, 807980, 903572, 1129465, 2258930, 4517860, 16038403, 32076806, 64153612, 80192015, 160384030, 320768060]

約数ペア:

[(1, 320768060), (2, 160384030), (4, 80192015), (5, 64153612), (10, 32076806), (20, 16038403), (71, 4517860), (142, 2258930), (284, 1129465), (355, 903572), (397, 807980), (569, 563740), (710, 451786), (794, 403990), (1138, 281870), (1420, 225893), (1588, 201995), (1985, 161596), (2276, 140935), (2845, 112748), (3970, 80798), (5690, 56374), (7940, 40399), (11380, 28187)]