52218725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 73995264

約数和(自身を除く): 21776539

約数列:

[1, 5, 13, 25, 31, 65, 71, 73, 155, 325, 355, 365, 403, 775, 923, 949, 1775, 1825, 2015, 2201, 2263, 4615, 4745, 5183, 10075, 11005, 11315, 23075, 23725, 25915, 28613, 29419, 55025, 56575, 67379, 129575, 143065, 147095, 160673, 336895, 715325, 735475, 803365, 1684475, 2088749, 4016825, 10443745, 52218725]

約数ペア:

[(1, 52218725), (5, 10443745), (13, 4016825), (25, 2088749), (31, 1684475), (65, 803365), (71, 735475), (73, 715325), (155, 336895), (325, 160673), (355, 147095), (365, 143065), (403, 129575), (775, 67379), (923, 56575), (949, 55025), (1775, 29419), (1825, 28613), (2015, 25915), (2201, 23725), (2263, 23075), (4615, 11315), (4745, 11005), (5183, 10075)]