66891980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{115331}}^1$

素因数の和:115369

約数の個数: 24

約数和(自身を含む): 145318320

約数和(自身を除く): 78426340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 115331, 230662, 461324, 576655, 1153310, 2306620, 3344599, 6689198, 13378396, 16722995, 33445990, 66891980]

約数ペア:

[(1, 66891980), (2, 33445990), (4, 16722995), (5, 13378396), (10, 6689198), (20, 3344599), (29, 2306620), (58, 1153310), (116, 576655), (145, 461324), (290, 230662), (580, 115331)]