157280620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{15823}}^1$

素因数の和:15910

約数の個数: 48

約数和(自身を含む): 382814208

約数和(自身を除く): 225533588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 15823, 31646, 63292, 79115, 110761, 158230, 221522, 316460, 443044, 553805, 1107610, 1123433, 2215220, 2246866, 4493732, 5617165, 7864031, 11234330, 15728062, 22468660, 31456124, 39320155, 78640310, 157280620]

約数ペア:

[(1, 157280620), (2, 78640310), (4, 39320155), (5, 31456124), (7, 22468660), (10, 15728062), (14, 11234330), (20, 7864031), (28, 5617165), (35, 4493732), (70, 2246866), (71, 2215220), (140, 1123433), (142, 1107610), (284, 553805), (355, 443044), (497, 316460), (710, 221522), (994, 158230), (1420, 110761), (1988, 79115), (2485, 63292), (4970, 31646), (9940, 15823)]