51246520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{709}}^1$

素因数の和:872

約数の個数: 64

約数和(自身を含む): 125244000

約数和(自身を除く): 73997480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 520, 556, 695, 709, 1112, 1390, 1418, 1807, 2780, 2836, 3545, 3614, 5560, 5672, 7090, 7228, 9035, 9217, 14180, 14456, 18070, 18434, 28360, 36140, 36868, 46085, 72280, 73736, 92170, 98551, 184340, 197102, 368680, 394204, 492755, 788408, 985510, 1281163, 1971020, 2562326, 3942040, 5124652, 6405815, 10249304, 12811630, 25623260, 51246520]

約数ペア:

[(1, 51246520), (2, 25623260), (4, 12811630), (5, 10249304), (8, 6405815), (10, 5124652), (13, 3942040), (20, 2562326), (26, 1971020), (40, 1281163), (52, 985510), (65, 788408), (104, 492755), (130, 394204), (139, 368680), (260, 197102), (278, 184340), (520, 98551), (556, 92170), (695, 73736), (709, 72280), (1112, 46085), (1390, 36868), (1418, 36140), (1807, 28360), (2780, 18434), (2836, 18070), (3545, 14456), (3614, 14180), (5560, 9217), (5672, 9035), (7090, 7228)]