200955980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{2473}}^1$

素因数の和:2738

約数の個数: 48

約数和(自身を含む): 448882560

約数和(自身を除く): 247926580

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 478, 956, 1195, 2390, 2473, 4063, 4780, 4946, 8126, 9892, 12365, 16252, 20315, 24730, 40630, 42041, 49460, 81260, 84082, 168164, 210205, 420410, 591047, 840820, 1182094, 2364188, 2955235, 5910470, 10047799, 11820940, 20095598, 40191196, 50238995, 100477990, 200955980]

約数ペア:

[(1, 200955980), (2, 100477990), (4, 50238995), (5, 40191196), (10, 20095598), (17, 11820940), (20, 10047799), (34, 5910470), (68, 2955235), (85, 2364188), (170, 1182094), (239, 840820), (340, 591047), (478, 420410), (956, 210205), (1195, 168164), (2390, 84082), (2473, 81260), (4063, 49460), (4780, 42041), (4946, 40630), (8126, 24730), (9892, 20315), (12365, 16252)]