20555625

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{577}}^1$

素因数の和:619

約数の個数: 40

約数和(自身を含む): 36113440

約数和(自身を除く): 15557815

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 577, 625, 1425, 1731, 1875, 2375, 2885, 7125, 8655, 10963, 11875, 14425, 32889, 35625, 43275, 54815, 72125, 164445, 216375, 274075, 360625, 822225, 1081875, 1370375, 4111125, 6851875, 20555625]

約数ペア:

[(1, 20555625), (3, 6851875), (5, 4111125), (15, 1370375), (19, 1081875), (25, 822225), (57, 360625), (75, 274075), (95, 216375), (125, 164445), (285, 72125), (375, 54815), (475, 43275), (577, 35625), (625, 32889), (1425, 14425), (1731, 11875), (1875, 10963), (2375, 8655), (2885, 7125)]