2205940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 5209344

約数和(自身を除く): 3003404

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 271, 370, 407, 542, 740, 814, 1084, 1355, 1628, 2035, 2710, 2981, 4070, 5420, 5962, 8140, 10027, 11924, 14905, 20054, 29810, 40108, 50135, 59620, 100270, 110297, 200540, 220594, 441188, 551485, 1102970, 2205940]

約数ペア:

[(1, 2205940), (2, 1102970), (4, 551485), (5, 441188), (10, 220594), (11, 200540), (20, 110297), (22, 100270), (37, 59620), (44, 50135), (55, 40108), (74, 29810), (110, 20054), (148, 14905), (185, 11924), (220, 10027), (271, 8140), (370, 5962), (407, 5420), (542, 4070), (740, 2981), (814, 2710), (1084, 2035), (1355, 1628)]