66439750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{20443}}^1$

素因数の和:20473

約数の個数: 32

約数和(自身を含む): 133949088

約数和(自身を除く): 67509338

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 20443, 40886, 102215, 204430, 265759, 511075, 531518, 1022150, 1328795, 2555375, 2657590, 5110750, 6643975, 13287950, 33219875, 66439750]

約数ペア:

[(1, 66439750), (2, 33219875), (5, 13287950), (10, 6643975), (13, 5110750), (25, 2657590), (26, 2555375), (50, 1328795), (65, 1022150), (125, 531518), (130, 511075), (250, 265759), (325, 204430), (650, 102215), (1625, 40886), (3250, 20443)]