20120863725

素因数分解:

$3^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{162889}}^1$

素因数の和:162972

約数の個数: 60

約数和(自身を含む): 37882024180

約数和(自身を除く): 17761160455

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 81, 135, 183, 225, 305, 405, 549, 675, 915, 1525, 1647, 2025, 2745, 4575, 4941, 8235, 13725, 24705, 41175, 123525, 162889, 488667, 814445, 1466001, 2443335, 4072225, 4398003, 7330005, 9936229, 12216675, 13194009, 21990015, 29808687, 36650025, 49681145, 65970045, 89426061, 109950075, 149043435, 248405725, 268278183, 329850225, 447130305, 745217175, 804834549, 1341390915, 2235651525, 4024172745, 6706954575, 20120863725]

約数ペア:

[(1, 20120863725), (3, 6706954575), (5, 4024172745), (9, 2235651525), (15, 1341390915), (25, 804834549), (27, 745217175), (45, 447130305), (61, 329850225), (75, 268278183), (81, 248405725), (135, 149043435), (183, 109950075), (225, 89426061), (305, 65970045), (405, 49681145), (549, 36650025), (675, 29808687), (915, 21990015), (1525, 13194009), (1647, 12216675), (2025, 9936229), (2745, 7330005), (4575, 4398003), (4941, 4072225), (8235, 2443335), (13725, 1466001), (24705, 814445), (41175, 488667), (123525, 162889)]