305353960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1361}}^1$

素因数の和:1522

約数の個数: 64

約数和(自身を含む): 706060800

約数和(自身を除く): 400706840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 79, 142, 158, 284, 316, 355, 395, 568, 632, 710, 790, 1361, 1420, 1580, 2722, 2840, 3160, 5444, 5609, 6805, 10888, 11218, 13610, 22436, 27220, 28045, 44872, 54440, 56090, 96631, 107519, 112180, 193262, 215038, 224360, 386524, 430076, 483155, 537595, 773048, 860152, 966310, 1075190, 1932620, 2150380, 3865240, 4300760, 7633849, 15267698, 30535396, 38169245, 61070792, 76338490, 152676980, 305353960]

約数ペア:

[(1, 305353960), (2, 152676980), (4, 76338490), (5, 61070792), (8, 38169245), (10, 30535396), (20, 15267698), (40, 7633849), (71, 4300760), (79, 3865240), (142, 2150380), (158, 1932620), (284, 1075190), (316, 966310), (355, 860152), (395, 773048), (568, 537595), (632, 483155), (710, 430076), (790, 386524), (1361, 224360), (1420, 215038), (1580, 193262), (2722, 112180), (2840, 107519), (3160, 96631), (5444, 56090), (5609, 54440), (6805, 44872), (10888, 28045), (11218, 27220), (13610, 22436)]