20197911375

素因数分解:

$3^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{252869}}^1$

素因数の和:252961

約数の個数: 48

約数和(自身を含む): 36923065920

約数和(自身を除く): 16725154545

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 125, 213, 225, 355, 375, 639, 1065, 1125, 1775, 3195, 5325, 8875, 15975, 26625, 79875, 252869, 758607, 1264345, 2275821, 3793035, 6321725, 11379105, 17953699, 18965175, 31608625, 53861097, 56895525, 89768495, 94825875, 161583291, 269305485, 284477625, 448842475, 807916455, 1346527425, 2244212375, 4039582275, 6732637125, 20197911375]

約数ペア:

[(1, 20197911375), (3, 6732637125), (5, 4039582275), (9, 2244212375), (15, 1346527425), (25, 807916455), (45, 448842475), (71, 284477625), (75, 269305485), (125, 161583291), (213, 94825875), (225, 89768495), (355, 56895525), (375, 53861097), (639, 31608625), (1065, 18965175), (1125, 17953699), (1775, 11379105), (3195, 6321725), (5325, 3793035), (8875, 2275821), (15975, 1264345), (26625, 758607), (79875, 252869)]