168756820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{1571}}^1$

素因数の和:1752

約数の個数: 48

約数和(自身を含む): 366037056

約数和(自身を除く): 197280236

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 131, 164, 205, 262, 410, 524, 655, 820, 1310, 1571, 2620, 3142, 5371, 6284, 7855, 10742, 15710, 21484, 26855, 31420, 53710, 64411, 107420, 128822, 205801, 257644, 322055, 411602, 644110, 823204, 1029005, 1288220, 2058010, 4116020, 8437841, 16875682, 33751364, 42189205, 84378410, 168756820]

約数ペア:

[(1, 168756820), (2, 84378410), (4, 42189205), (5, 33751364), (10, 16875682), (20, 8437841), (41, 4116020), (82, 2058010), (131, 1288220), (164, 1029005), (205, 823204), (262, 644110), (410, 411602), (524, 322055), (655, 257644), (820, 205801), (1310, 128822), (1571, 107420), (2620, 64411), (3142, 53710), (5371, 31420), (6284, 26855), (7855, 21484), (10742, 15710)]