20343375

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^2\times {\mathrm{107}}^1$

素因数の和:154

約数の個数: 72

約数和(自身を含む): 40081392

約数和(自身を除く): 19738017

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 107, 117, 125, 169, 195, 225, 321, 325, 375, 507, 535, 585, 845, 963, 975, 1125, 1391, 1521, 1605, 1625, 2535, 2675, 2925, 4173, 4225, 4815, 4875, 6955, 7605, 8025, 12519, 12675, 13375, 14625, 18083, 20865, 21125, 24075, 34775, 38025, 40125, 54249, 62595, 63375, 90415, 104325, 120375, 162747, 173875, 190125, 271245, 312975, 452075, 521625, 813735, 1356225, 1564875, 2260375, 4068675, 6781125, 20343375]

約数ペア:

[(1, 20343375), (3, 6781125), (5, 4068675), (9, 2260375), (13, 1564875), (15, 1356225), (25, 813735), (39, 521625), (45, 452075), (65, 312975), (75, 271245), (107, 190125), (117, 173875), (125, 162747), (169, 120375), (195, 104325), (225, 90415), (321, 63375), (325, 62595), (375, 54249), (507, 40125), (535, 38025), (585, 34775), (845, 24075), (963, 21125), (975, 20865), (1125, 18083), (1391, 14625), (1521, 13375), (1605, 12675), (1625, 12519), (2535, 8025), (2675, 7605), (2925, 6955), (4173, 4875), (4225, 4815)]