20585200

素因数分解:

$2^4\times 5^2\times {\mathrm{53}}^1\times {\mathrm{971}}^1$

素因数の和:1042

約数の個数: 60

約数和(自身を含む): 50440968

約数和(自身を除く): 29855768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 53, 80, 100, 106, 200, 212, 265, 400, 424, 530, 848, 971, 1060, 1325, 1942, 2120, 2650, 3884, 4240, 4855, 5300, 7768, 9710, 10600, 15536, 19420, 21200, 24275, 38840, 48550, 51463, 77680, 97100, 102926, 194200, 205852, 257315, 388400, 411704, 514630, 823408, 1029260, 1286575, 2058520, 2573150, 4117040, 5146300, 10292600, 20585200]

約数ペア:

[(1, 20585200), (2, 10292600), (4, 5146300), (5, 4117040), (8, 2573150), (10, 2058520), (16, 1286575), (20, 1029260), (25, 823408), (40, 514630), (50, 411704), (53, 388400), (80, 257315), (100, 205852), (106, 194200), (200, 102926), (212, 97100), (265, 77680), (400, 51463), (424, 48550), (530, 38840), (848, 24275), (971, 21200), (1060, 19420), (1325, 15536), (1942, 10600), (2120, 9710), (2650, 7768), (3884, 5300), (4240, 4855)]