2030625

素因数分解:

$3^2\times 5^4\times {\mathrm{19}}^2$

素因数の和:64

約数の個数: 45

約数和(自身を含む): 3868293

約数和(自身を除く): 1837668

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 125, 171, 225, 285, 361, 375, 475, 625, 855, 1083, 1125, 1425, 1805, 1875, 2375, 3249, 4275, 5415, 5625, 7125, 9025, 11875, 16245, 21375, 27075, 35625, 45125, 81225, 106875, 135375, 225625, 406125, 676875, 2030625]

約数ペア:

[(1, 2030625), (3, 676875), (5, 406125), (9, 225625), (15, 135375), (19, 106875), (25, 81225), (45, 45125), (57, 35625), (75, 27075), (95, 21375), (125, 16245), (171, 11875), (225, 9025), (285, 7125), (361, 5625), (375, 5415), (475, 4275), (625, 3249), (855, 2375), (1083, 1875), (1125, 1805)]