28217670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72353}}^1$

素因数の和:72376

約数の個数: 32

約数和(自身を含む): 72932832

約数和(自身を除く): 44715162

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72353, 144706, 217059, 361765, 434118, 723530, 940589, 1085295, 1881178, 2170590, 2821767, 4702945, 5643534, 9405890, 14108835, 28217670]

約数ペア:

[(1, 28217670), (2, 14108835), (3, 9405890), (5, 5643534), (6, 4702945), (10, 2821767), (13, 2170590), (15, 1881178), (26, 1085295), (30, 940589), (39, 723530), (65, 434118), (78, 361765), (130, 217059), (195, 144706), (390, 72353)]