20876020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3061}}^1$

素因数の和:3112

約数の個数: 48

約数和(自身を含む): 49383936

約数和(自身を除く): 28507916

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3061, 3410, 6122, 6820, 12244, 15305, 30610, 33671, 61220, 67342, 94891, 134684, 168355, 189782, 336710, 379564, 474455, 673420, 948910, 1043801, 1897820, 2087602, 4175204, 5219005, 10438010, 20876020]

約数ペア:

[(1, 20876020), (2, 10438010), (4, 5219005), (5, 4175204), (10, 2087602), (11, 1897820), (20, 1043801), (22, 948910), (31, 673420), (44, 474455), (55, 379564), (62, 336710), (110, 189782), (124, 168355), (155, 134684), (220, 94891), (310, 67342), (341, 61220), (620, 33671), (682, 30610), (1364, 15305), (1705, 12244), (3061, 6820), (3410, 6122)]