201243640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{387007}}^1$

素因数の和:387031

約数の個数: 32

約数和(自身を含む): 487630080

約数和(自身を除く): 286386440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 387007, 774014, 1548028, 1935035, 3096056, 3870070, 5031091, 7740140, 10062182, 15480280, 20124364, 25155455, 40248728, 50310910, 100621820, 201243640]

約数ペア:

[(1, 201243640), (2, 100621820), (4, 50310910), (5, 40248728), (8, 25155455), (10, 20124364), (13, 15480280), (20, 10062182), (26, 7740140), (40, 5031091), (52, 3870070), (65, 3096056), (104, 1935035), (130, 1548028), (260, 774014), (520, 387007)]