221570570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{7643}}^1$

素因数の和:7886

約数の個数: 32

約数和(自身を含む): 431488512

約数和(自身を除く): 209917942

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 223, 446, 1115, 2230, 2899, 5798, 7643, 14495, 15286, 28990, 38215, 76430, 99359, 198718, 496795, 993590, 1704389, 3408778, 8521945, 17043890, 22157057, 44314114, 110785285, 221570570]

約数ペア:

[(1, 221570570), (2, 110785285), (5, 44314114), (10, 22157057), (13, 17043890), (26, 8521945), (65, 3408778), (130, 1704389), (223, 993590), (446, 496795), (1115, 198718), (2230, 99359), (2899, 76430), (5798, 38215), (7643, 28990), (14495, 15286)]