20608125

素因数分解:

$3^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:431

約数の個数: 40

約数和(自身を含む): 35613600

約数和(自身を除く): 15005475

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 375, 379, 435, 625, 725, 1137, 1875, 1895, 2175, 3625, 5685, 9475, 10875, 10991, 18125, 28425, 32973, 47375, 54375, 54955, 142125, 164865, 236875, 274775, 710625, 824325, 1373875, 4121625, 6869375, 20608125]

約数ペア:

[(1, 20608125), (3, 6869375), (5, 4121625), (15, 1373875), (25, 824325), (29, 710625), (75, 274775), (87, 236875), (125, 164865), (145, 142125), (375, 54955), (379, 54375), (435, 47375), (625, 32973), (725, 28425), (1137, 18125), (1875, 10991), (1895, 10875), (2175, 9475), (3625, 5685)]