20734155

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{67}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 41063568

約数和(自身を除く): 20329413

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 67, 69, 115, 117, 195, 201, 207, 299, 335, 345, 529, 585, 603, 871, 897, 1005, 1035, 1495, 1541, 1587, 2613, 2645, 2691, 3015, 4355, 4485, 4623, 4761, 6877, 7705, 7839, 7935, 13065, 13455, 13869, 20033, 20631, 23115, 23805, 34385, 35443, 39195, 60099, 61893, 69345, 100165, 103155, 106329, 177215, 180297, 300495, 309465, 318987, 460759, 531645, 901485, 1382277, 1594935, 2303795, 4146831, 6911385, 20734155]

約数ペア:

[(1, 20734155), (3, 6911385), (5, 4146831), (9, 2303795), (13, 1594935), (15, 1382277), (23, 901485), (39, 531645), (45, 460759), (65, 318987), (67, 309465), (69, 300495), (115, 180297), (117, 177215), (195, 106329), (201, 103155), (207, 100165), (299, 69345), (335, 61893), (345, 60099), (529, 39195), (585, 35443), (603, 34385), (871, 23805), (897, 23115), (1005, 20631), (1035, 20033), (1495, 13869), (1541, 13455), (1587, 13065), (2613, 7935), (2645, 7839), (2691, 7705), (3015, 6877), (4355, 4761), (4485, 4623)]