20854070

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2011}}^1$

素因数の和:2096

約数の個数: 32

約数和(自身を含む): 40417056

約数和(自身を除く): 19562986

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 122, 170, 305, 610, 1037, 2011, 2074, 4022, 5185, 10055, 10370, 20110, 34187, 68374, 122671, 170935, 245342, 341870, 613355, 1226710, 2085407, 4170814, 10427035, 20854070]

約数ペア:

[(1, 20854070), (2, 10427035), (5, 4170814), (10, 2085407), (17, 1226710), (34, 613355), (61, 341870), (85, 245342), (122, 170935), (170, 122671), (305, 68374), (610, 34187), (1037, 20110), (2011, 10370), (2074, 10055), (4022, 5185)]