20095075

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 34171424

約数和(自身を除く): 14076349

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 73, 77, 91, 121, 143, 175, 275, 325, 365, 385, 455, 511, 605, 715, 803, 847, 949, 1001, 1573, 1825, 1925, 2275, 2555, 3025, 3575, 4015, 4235, 4745, 5005, 5621, 6643, 7865, 8833, 10439, 11011, 12775, 20075, 21175, 23725, 25025, 28105, 33215, 39325, 44165, 52195, 55055, 61831, 73073, 114829, 140525, 166075, 220825, 260975, 275275, 309155, 365365, 574145, 803803, 1545775, 1826825, 2870725, 4019015, 20095075]

約数ペア:

[(1, 20095075), (5, 4019015), (7, 2870725), (11, 1826825), (13, 1545775), (25, 803803), (35, 574145), (55, 365365), (65, 309155), (73, 275275), (77, 260975), (91, 220825), (121, 166075), (143, 140525), (175, 114829), (275, 73073), (325, 61831), (365, 55055), (385, 52195), (455, 44165), (511, 39325), (605, 33215), (715, 28105), (803, 25025), (847, 23725), (949, 21175), (1001, 20075), (1573, 12775), (1825, 11011), (1925, 10439), (2275, 8833), (2555, 7865), (3025, 6643), (3575, 5621), (4015, 5005), (4235, 4745)]