20530087960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{970231}}^1$

素因数の和:970288

約数の個数: 48

約数和(自身を含む): 48288446640

約数和(自身を除く): 27758358680

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 1058, 2116, 2645, 4232, 5290, 10580, 21160, 970231, 1940462, 3880924, 4851155, 7761848, 9702310, 19404620, 22315313, 38809240, 44630626, 89261252, 111576565, 178522504, 223153130, 446306260, 513252199, 892612520, 1026504398, 2053008796, 2566260995, 4106017592, 5132521990, 10265043980, 20530087960]

約数ペア:

[(1, 20530087960), (2, 10265043980), (4, 5132521990), (5, 4106017592), (8, 2566260995), (10, 2053008796), (20, 1026504398), (23, 892612520), (40, 513252199), (46, 446306260), (92, 223153130), (115, 178522504), (184, 111576565), (230, 89261252), (460, 44630626), (529, 38809240), (920, 22315313), (1058, 19404620), (2116, 9702310), (2645, 7761848), (4232, 4851155), (5290, 3880924), (10580, 1940462), (21160, 970231)]