77127700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{751}}^1$

素因数の和:857

約数の個数: 72

約数和(自身を含む): 182766080

約数和(自身を除く): 105638380

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 130, 158, 260, 316, 325, 395, 650, 751, 790, 1027, 1300, 1502, 1580, 1975, 2054, 3004, 3755, 3950, 4108, 5135, 7510, 7900, 9763, 10270, 15020, 18775, 19526, 20540, 25675, 37550, 39052, 48815, 51350, 59329, 75100, 97630, 102700, 118658, 195260, 237316, 244075, 296645, 488150, 593290, 771277, 976300, 1186580, 1483225, 1542554, 2966450, 3085108, 3856385, 5932900, 7712770, 15425540, 19281925, 38563850, 77127700]

約数ペア:

[(1, 77127700), (2, 38563850), (4, 19281925), (5, 15425540), (10, 7712770), (13, 5932900), (20, 3856385), (25, 3085108), (26, 2966450), (50, 1542554), (52, 1483225), (65, 1186580), (79, 976300), (100, 771277), (130, 593290), (158, 488150), (260, 296645), (316, 244075), (325, 237316), (395, 195260), (650, 118658), (751, 102700), (790, 97630), (1027, 75100), (1300, 59329), (1502, 51350), (1580, 48815), (1975, 39052), (2054, 37550), (3004, 25675), (3755, 20540), (3950, 19526), (4108, 18775), (5135, 15020), (7510, 10270), (7900, 9763)]