20187780220

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{881}}^1\times {\mathrm{8363}}^1$

素因数の和:9390

約数の個数: 48

約数和(自身を含む): 42757370208

約数和(自身を除く): 22569589988

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 881, 1370, 1762, 2740, 3524, 4405, 8363, 8810, 16726, 17620, 33452, 41815, 83630, 120697, 167260, 241394, 482788, 603485, 1145731, 1206970, 2291462, 2413940, 4582924, 5728655, 7367803, 11457310, 14735606, 22914620, 29471212, 36839015, 73678030, 147356060, 1009389011, 2018778022, 4037556044, 5046945055, 10093890110, 20187780220]

約数ペア:

[(1, 20187780220), (2, 10093890110), (4, 5046945055), (5, 4037556044), (10, 2018778022), (20, 1009389011), (137, 147356060), (274, 73678030), (548, 36839015), (685, 29471212), (881, 22914620), (1370, 14735606), (1762, 11457310), (2740, 7367803), (3524, 5728655), (4405, 4582924), (8363, 2413940), (8810, 2291462), (16726, 1206970), (17620, 1145731), (33452, 603485), (41815, 482788), (83630, 241394), (120697, 167260)]