80320980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{70457}}^1$

素因数の和:70488

約数の個数: 48

約数和(自身を含む): 236738880

約数和(自身を除く): 156417900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 70457, 140914, 211371, 281828, 352285, 422742, 704570, 845484, 1056855, 1338683, 1409140, 2113710, 2677366, 4016049, 4227420, 5354732, 6693415, 8032098, 13386830, 16064196, 20080245, 26773660, 40160490, 80320980]

約数ペア:

[(1, 80320980), (2, 40160490), (3, 26773660), (4, 20080245), (5, 16064196), (6, 13386830), (10, 8032098), (12, 6693415), (15, 5354732), (19, 4227420), (20, 4016049), (30, 2677366), (38, 2113710), (57, 1409140), (60, 1338683), (76, 1056855), (95, 845484), (114, 704570), (190, 422742), (228, 352285), (285, 281828), (380, 211371), (570, 140914), (1140, 70457)]