189809125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 274839552

約数和(自身を除く): 85030427

約数列:

[1, 5, 11, 25, 31, 55, 61, 73, 125, 155, 275, 305, 341, 365, 671, 775, 803, 1375, 1525, 1705, 1825, 1891, 2263, 3355, 3875, 4015, 4453, 7625, 8525, 9125, 9455, 11315, 16775, 20075, 20801, 22265, 24893, 42625, 47275, 48983, 56575, 83875, 100375, 104005, 111325, 124465, 138043, 236375, 244915, 282875, 520025, 556625, 622325, 690215, 1224575, 1518473, 2600125, 3111625, 3451075, 6122875, 7592365, 17255375, 37961825, 189809125]

約数ペア:

[(1, 189809125), (5, 37961825), (11, 17255375), (25, 7592365), (31, 6122875), (55, 3451075), (61, 3111625), (73, 2600125), (125, 1518473), (155, 1224575), (275, 690215), (305, 622325), (341, 556625), (365, 520025), (671, 282875), (775, 244915), (803, 236375), (1375, 138043), (1525, 124465), (1705, 111325), (1825, 104005), (1891, 100375), (2263, 83875), (3355, 56575), (3875, 48983), (4015, 47275), (4453, 42625), (7625, 24893), (8525, 22265), (9125, 20801), (9455, 20075), (11315, 16775)]