20289311588

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{355031}}^1$

素因数の和:355212

約数の個数: 48

約数和(自身を含む): 43978523904

約数和(自身を除く): 23689212316

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 157, 182, 314, 364, 628, 1099, 2041, 2198, 4082, 4396, 8164, 14287, 28574, 57148, 355031, 710062, 1420124, 2485217, 4615403, 4970434, 9230806, 9940868, 18461612, 32307821, 55739867, 64615642, 111479734, 129231284, 222959468, 390179069, 724618271, 780358138, 1449236542, 1560716276, 2898473084, 5072327897, 10144655794, 20289311588]

約数ペア:

[(1, 20289311588), (2, 10144655794), (4, 5072327897), (7, 2898473084), (13, 1560716276), (14, 1449236542), (26, 780358138), (28, 724618271), (52, 390179069), (91, 222959468), (157, 129231284), (182, 111479734), (314, 64615642), (364, 55739867), (628, 32307821), (1099, 18461612), (2041, 9940868), (2198, 9230806), (4082, 4970434), (4396, 4615403), (8164, 2485217), (14287, 1420124), (28574, 710062), (57148, 355031)]