19770200

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2411}}^1$

素因数の和:2468

約数の個数: 48

約数和(自身を含む): 47106360

約数和(自身を除く): 27336160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2411, 4100, 4822, 8200, 9644, 12055, 19288, 24110, 48220, 60275, 96440, 98851, 120550, 197702, 241100, 395404, 482200, 494255, 790808, 988510, 1977020, 2471275, 3954040, 4942550, 9885100, 19770200]

約数ペア:

[(1, 19770200), (2, 9885100), (4, 4942550), (5, 3954040), (8, 2471275), (10, 1977020), (20, 988510), (25, 790808), (40, 494255), (41, 482200), (50, 395404), (82, 241100), (100, 197702), (164, 120550), (200, 98851), (205, 96440), (328, 60275), (410, 48220), (820, 24110), (1025, 19288), (1640, 12055), (2050, 9644), (2411, 8200), (4100, 4822)]