157390360

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{21739}}^1$

素因数の和:21931

約数の個数: 32

約数和(自身を含む): 356101200

約数和(自身を除く): 198710840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 21739, 43478, 86956, 108695, 173912, 217390, 434780, 869560, 3934759, 7869518, 15739036, 19673795, 31478072, 39347590, 78695180, 157390360]

約数ペア:

[(1, 157390360), (2, 78695180), (4, 39347590), (5, 31478072), (8, 19673795), (10, 15739036), (20, 7869518), (40, 3934759), (181, 869560), (362, 434780), (724, 217390), (905, 173912), (1448, 108695), (1810, 86956), (3620, 43478), (7240, 21739)]