18033125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 40

約数和(自身を含む): 25566816

約数和(自身を除く): 7533691

約数列:

[1, 5, 11, 25, 43, 55, 61, 125, 215, 275, 305, 473, 625, 671, 1075, 1375, 1525, 2365, 2623, 3355, 5375, 6875, 7625, 11825, 13115, 16775, 26875, 28853, 38125, 59125, 65575, 83875, 144265, 295625, 327875, 419375, 721325, 1639375, 3606625, 18033125]

約数ペア:

[(1, 18033125), (5, 3606625), (11, 1639375), (25, 721325), (43, 419375), (55, 327875), (61, 295625), (125, 144265), (215, 83875), (275, 65575), (305, 59125), (473, 38125), (625, 28853), (671, 26875), (1075, 16775), (1375, 13115), (1525, 11825), (2365, 7625), (2623, 6875), (3355, 5375)]