66138125

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 40

約数和(自身を含む): 88565400

約数和(自身を除く): 22427275

約数列:

[1, 5, 25, 29, 41, 89, 125, 145, 205, 445, 625, 725, 1025, 1189, 2225, 2581, 3625, 3649, 5125, 5945, 11125, 12905, 18125, 18245, 25625, 29725, 55625, 64525, 91225, 105821, 148625, 322625, 456125, 529105, 743125, 1613125, 2280625, 2645525, 13227625, 66138125]

約数ペア:

[(1, 66138125), (5, 13227625), (25, 2645525), (29, 2280625), (41, 1613125), (89, 743125), (125, 529105), (145, 456125), (205, 322625), (445, 148625), (625, 105821), (725, 91225), (1025, 64525), (1189, 55625), (2225, 29725), (2581, 25625), (3625, 18245), (3649, 18125), (5125, 12905), (5945, 11125)]