220724980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{42611}}^1$

素因数の和:42664

約数の個数: 48

約数和(自身を含む): 544070016

約数和(自身を除く): 323345036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 42611, 85222, 170444, 213055, 298277, 426110, 596554, 852220, 1193108, 1491385, 1576607, 2982770, 3153214, 5965540, 6306428, 7883035, 11036249, 15766070, 22072498, 31532140, 44144996, 55181245, 110362490, 220724980]

約数ペア:

[(1, 220724980), (2, 110362490), (4, 55181245), (5, 44144996), (7, 31532140), (10, 22072498), (14, 15766070), (20, 11036249), (28, 7883035), (35, 6306428), (37, 5965540), (70, 3153214), (74, 2982770), (140, 1576607), (148, 1491385), (185, 1193108), (259, 852220), (370, 596554), (518, 426110), (740, 298277), (1036, 213055), (1295, 170444), (2590, 85222), (5180, 42611)]