20551830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52697}}^1$

素因数の和:52720

約数の個数: 32

約数和(自身を含む): 53119584

約数和(自身を除く): 32567754

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52697, 105394, 158091, 263485, 316182, 526970, 685061, 790455, 1370122, 1580910, 2055183, 3425305, 4110366, 6850610, 10275915, 20551830]

約数ペア:

[(1, 20551830), (2, 10275915), (3, 6850610), (5, 4110366), (6, 3425305), (10, 2055183), (13, 1580910), (15, 1370122), (26, 790455), (30, 685061), (39, 526970), (65, 316182), (78, 263485), (130, 158091), (195, 105394), (390, 52697)]