20456487170

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{1483}}^1\times {\mathrm{28151}}^1$

素因数の和:29655

約数の個数: 48

約数和(自身を含む): 42863784768

約数和(自身を除く): 22407297598

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 1483, 2966, 7415, 10381, 14830, 20762, 28151, 51905, 56302, 72667, 103810, 140755, 145334, 197057, 281510, 363335, 394114, 726670, 985285, 1379399, 1970570, 2758798, 6896995, 13793990, 41747933, 83495866, 208739665, 292235531, 417479330, 584471062, 1461177655, 2045648717, 2922355310, 4091297434, 10228243585, 20456487170]

約数ペア:

[(1, 20456487170), (2, 10228243585), (5, 4091297434), (7, 2922355310), (10, 2045648717), (14, 1461177655), (35, 584471062), (49, 417479330), (70, 292235531), (98, 208739665), (245, 83495866), (490, 41747933), (1483, 13793990), (2966, 6896995), (7415, 2758798), (10381, 1970570), (14830, 1379399), (20762, 985285), (28151, 726670), (51905, 394114), (56302, 363335), (72667, 281510), (103810, 197057), (140755, 145334)]