123738820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{150901}}^1$

素因数の和:150951

約数の個数: 24

約数和(自身を含む): 266191128

約数和(自身を除く): 142452308

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 150901, 301802, 603604, 754505, 1509010, 3018020, 6186941, 12373882, 24747764, 30934705, 61869410, 123738820]

約数ペア:

[(1, 123738820), (2, 61869410), (4, 30934705), (5, 24747764), (10, 12373882), (20, 6186941), (41, 3018020), (82, 1509010), (164, 754505), (205, 603604), (410, 301802), (820, 150901)]