129123020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1423}}^1$

素因数の和:1794

約数の個数: 48

約数和(自身を含む): 293059200

約数和(自身を除く): 163936180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 349, 698, 1396, 1423, 1745, 2846, 3490, 4537, 5692, 6980, 7115, 9074, 14230, 18148, 18499, 22685, 28460, 36998, 45370, 73996, 90740, 92495, 184990, 369980, 496627, 993254, 1986508, 2483135, 4966270, 6456151, 9932540, 12912302, 25824604, 32280755, 64561510, 129123020]

約数ペア:

[(1, 129123020), (2, 64561510), (4, 32280755), (5, 25824604), (10, 12912302), (13, 9932540), (20, 6456151), (26, 4966270), (52, 2483135), (65, 1986508), (130, 993254), (260, 496627), (349, 369980), (698, 184990), (1396, 92495), (1423, 90740), (1745, 73996), (2846, 45370), (3490, 36998), (4537, 28460), (5692, 22685), (6980, 18499), (7115, 18148), (9074, 14230)]