66564375

素因数分解:

$3^1\times 5^4\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 112164096

約数和(自身を除く): 45599721

約数列:

[1, 3, 5, 15, 25, 75, 125, 131, 271, 375, 393, 625, 655, 813, 1355, 1875, 1965, 3275, 4065, 6775, 9825, 16375, 20325, 33875, 35501, 49125, 81875, 101625, 106503, 169375, 177505, 245625, 508125, 532515, 887525, 2662575, 4437625, 13312875, 22188125, 66564375]

約数ペア:

[(1, 66564375), (3, 22188125), (5, 13312875), (15, 4437625), (25, 2662575), (75, 887525), (125, 532515), (131, 508125), (271, 245625), (375, 177505), (393, 169375), (625, 106503), (655, 101625), (813, 81875), (1355, 49125), (1875, 35501), (1965, 33875), (3275, 20325), (4065, 16375), (6775, 9825)]