55221580

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 118974240

約数和(自身を除く): 63752660

約数列:

[1, 2, 4, 5, 10, 20, 73, 109, 146, 218, 292, 347, 365, 436, 545, 694, 730, 1090, 1388, 1460, 1735, 2180, 3470, 6940, 7957, 15914, 25331, 31828, 37823, 39785, 50662, 75646, 79570, 101324, 126655, 151292, 159140, 189115, 253310, 378230, 506620, 756460, 2761079, 5522158, 11044316, 13805395, 27610790, 55221580]

約数ペア:

[(1, 55221580), (2, 27610790), (4, 13805395), (5, 11044316), (10, 5522158), (20, 2761079), (73, 756460), (109, 506620), (146, 378230), (218, 253310), (292, 189115), (347, 159140), (365, 151292), (436, 126655), (545, 101324), (694, 79570), (730, 75646), (1090, 50662), (1388, 39785), (1460, 37823), (1735, 31828), (2180, 25331), (3470, 15914), (6940, 7957)]