620419825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 854409600

約数和(自身を除く): 233989775

約数列:

[1, 5, 19, 23, 25, 95, 109, 115, 437, 475, 521, 545, 575, 2071, 2185, 2507, 2605, 2725, 9899, 10355, 10925, 11983, 12535, 13025, 47633, 49495, 51775, 56789, 59915, 62675, 227677, 238165, 247475, 283945, 299575, 1078991, 1138385, 1190825, 1306147, 1419725, 5394955, 5691925, 6530735, 24816793, 26974775, 32653675, 124083965, 620419825]

約数ペア:

[(1, 620419825), (5, 124083965), (19, 32653675), (23, 26974775), (25, 24816793), (95, 6530735), (109, 5691925), (115, 5394955), (437, 1419725), (475, 1306147), (521, 1190825), (545, 1138385), (575, 1078991), (2071, 299575), (2185, 283945), (2507, 247475), (2605, 238165), (2725, 227677), (9899, 62675), (10355, 59915), (10925, 56789), (11983, 51775), (12535, 49495), (13025, 47633)]