19615700

素因数分解:

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

素因数の和:297

約数の個数: 72

約数和(自身を含む): 46663680

約数和(自身を除く): 27047980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 130, 158, 191, 260, 316, 325, 382, 395, 650, 764, 790, 955, 1027, 1300, 1580, 1910, 1975, 2054, 2483, 3820, 3950, 4108, 4775, 4966, 5135, 7900, 9550, 9932, 10270, 12415, 15089, 19100, 20540, 24830, 25675, 30178, 49660, 51350, 60356, 62075, 75445, 102700, 124150, 150890, 196157, 248300, 301780, 377225, 392314, 754450, 784628, 980785, 1508900, 1961570, 3923140, 4903925, 9807850, 19615700]

約数ペア:

[(1, 19615700), (2, 9807850), (4, 4903925), (5, 3923140), (10, 1961570), (13, 1508900), (20, 980785), (25, 784628), (26, 754450), (50, 392314), (52, 377225), (65, 301780), (79, 248300), (100, 196157), (130, 150890), (158, 124150), (191, 102700), (260, 75445), (316, 62075), (325, 60356), (382, 51350), (395, 49660), (650, 30178), (764, 25675), (790, 24830), (955, 20540), (1027, 19100), (1300, 15089), (1580, 12415), (1910, 10270), (1975, 9932), (2054, 9550), (2483, 7900), (3820, 5135), (3950, 4966), (4108, 4775)]