31382475

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 54734592

約数和(自身を除く): 23352117

約数列:

[1, 3, 5, 15, 25, 37, 43, 75, 111, 129, 185, 215, 263, 555, 645, 789, 925, 1075, 1315, 1591, 2775, 3225, 3945, 4773, 6575, 7955, 9731, 11309, 19725, 23865, 29193, 33927, 39775, 48655, 56545, 119325, 145965, 169635, 243275, 282725, 418433, 729825, 848175, 1255299, 2092165, 6276495, 10460825, 31382475]

約数ペア:

[(1, 31382475), (3, 10460825), (5, 6276495), (15, 2092165), (25, 1255299), (37, 848175), (43, 729825), (75, 418433), (111, 282725), (129, 243275), (185, 169635), (215, 145965), (263, 119325), (555, 56545), (645, 48655), (789, 39775), (925, 33927), (1075, 29193), (1315, 23865), (1591, 19725), (2775, 11309), (3225, 9731), (3945, 7955), (4773, 6575)]