142790020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{117041}}^1$

素因数の和:117111

約数の個数: 24

約数和(自身を含む): 304777368

約数和(自身を除く): 161987348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 117041, 234082, 468164, 585205, 1170410, 2340820, 7139501, 14279002, 28558004, 35697505, 71395010, 142790020]

約数ペア:

[(1, 142790020), (2, 71395010), (4, 35697505), (5, 28558004), (10, 14279002), (20, 7139501), (61, 2340820), (122, 1170410), (244, 585205), (305, 468164), (610, 234082), (1220, 117041)]