17998125

素因数分解:

$3^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:383

約数の個数: 40

約数和(自身を含む): 31115040

約数和(自身を除く): 13116915

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 331, 375, 435, 625, 725, 993, 1655, 1875, 2175, 3625, 4965, 8275, 9599, 10875, 18125, 24825, 28797, 41375, 47995, 54375, 124125, 143985, 206875, 239975, 620625, 719925, 1199875, 3599625, 5999375, 17998125]

約数ペア:

[(1, 17998125), (3, 5999375), (5, 3599625), (15, 1199875), (25, 719925), (29, 620625), (75, 239975), (87, 206875), (125, 143985), (145, 124125), (331, 54375), (375, 47995), (435, 41375), (625, 28797), (725, 24825), (993, 18125), (1655, 10875), (1875, 9599), (2175, 8275), (3625, 4965)]