85386020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 183472128

約数和(自身を除く): 98086108

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 157, 284, 314, 355, 383, 628, 710, 766, 785, 1420, 1532, 1570, 1915, 3140, 3830, 7660, 11147, 22294, 27193, 44588, 54386, 55735, 60131, 108772, 111470, 120262, 135965, 222940, 240524, 271930, 300655, 543860, 601310, 1202620, 4269301, 8538602, 17077204, 21346505, 42693010, 85386020]

約数ペア:

[(1, 85386020), (2, 42693010), (4, 21346505), (5, 17077204), (10, 8538602), (20, 4269301), (71, 1202620), (142, 601310), (157, 543860), (284, 300655), (314, 271930), (355, 240524), (383, 222940), (628, 135965), (710, 120262), (766, 111470), (785, 108772), (1420, 60131), (1532, 55735), (1570, 54386), (1915, 44588), (3140, 27193), (3830, 22294), (7660, 11147)]