20555170

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1087}}^1$

素因数の和:1186

約数の個数: 32

約数和(自身を含む): 38854656

約数和(自身を除く): 18299486

約数列:

[1, 2, 5, 10, 31, 61, 62, 122, 155, 305, 310, 610, 1087, 1891, 2174, 3782, 5435, 9455, 10870, 18910, 33697, 66307, 67394, 132614, 168485, 331535, 336970, 663070, 2055517, 4111034, 10277585, 20555170]

約数ペア:

[(1, 20555170), (2, 10277585), (5, 4111034), (10, 2055517), (31, 663070), (61, 336970), (62, 331535), (122, 168485), (155, 132614), (305, 67394), (310, 66307), (610, 33697), (1087, 18910), (1891, 10870), (2174, 9455), (3782, 5435)]