51370400

素因数分解:

$2^5\times 5^2\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:586

約数の個数: 72

約数和(自身を含む): 126515340

約数和(自身を除く): 75144940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 157, 160, 200, 314, 400, 409, 628, 785, 800, 818, 1256, 1570, 1636, 2045, 2512, 3140, 3272, 3925, 4090, 5024, 6280, 6544, 7850, 8180, 10225, 12560, 13088, 15700, 16360, 20450, 25120, 31400, 32720, 40900, 62800, 64213, 65440, 81800, 125600, 128426, 163600, 256852, 321065, 327200, 513704, 642130, 1027408, 1284260, 1605325, 2054816, 2568520, 3210650, 5137040, 6421300, 10274080, 12842600, 25685200, 51370400]

約数ペア:

[(1, 51370400), (2, 25685200), (4, 12842600), (5, 10274080), (8, 6421300), (10, 5137040), (16, 3210650), (20, 2568520), (25, 2054816), (32, 1605325), (40, 1284260), (50, 1027408), (80, 642130), (100, 513704), (157, 327200), (160, 321065), (200, 256852), (314, 163600), (400, 128426), (409, 125600), (628, 81800), (785, 65440), (800, 64213), (818, 62800), (1256, 40900), (1570, 32720), (1636, 31400), (2045, 25120), (2512, 20450), (3140, 16360), (3272, 15700), (3925, 13088), (4090, 12560), (5024, 10225), (6280, 8180), (6544, 7850)]