51000820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 118056960

約数和(自身を除く): 67056140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 169, 191, 260, 316, 338, 382, 395, 676, 764, 790, 845, 955, 1027, 1580, 1690, 1910, 2054, 2483, 3380, 3820, 4108, 4966, 5135, 9932, 10270, 12415, 13351, 15089, 20540, 24830, 26702, 30178, 32279, 49660, 53404, 60356, 64558, 66755, 75445, 129116, 133510, 150890, 161395, 196157, 267020, 301780, 322790, 392314, 645580, 784628, 980785, 1961570, 2550041, 3923140, 5100082, 10200164, 12750205, 25500410, 51000820]

約数ペア:

[(1, 51000820), (2, 25500410), (4, 12750205), (5, 10200164), (10, 5100082), (13, 3923140), (20, 2550041), (26, 1961570), (52, 980785), (65, 784628), (79, 645580), (130, 392314), (158, 322790), (169, 301780), (191, 267020), (260, 196157), (316, 161395), (338, 150890), (382, 133510), (395, 129116), (676, 75445), (764, 66755), (790, 64558), (845, 60356), (955, 53404), (1027, 49660), (1580, 32279), (1690, 30178), (1910, 26702), (2054, 24830), (2483, 20540), (3380, 15089), (3820, 13351), (4108, 12415), (4966, 10270), (5135, 9932)]