642000944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{13841}}^1$

素因数の和:14085

約数の個数: 40

約数和(自身を含む): 1345663872

約数和(自身を除く): 703662928

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 223, 446, 892, 1784, 2899, 3568, 5798, 11596, 13841, 23192, 27682, 46384, 55364, 110728, 179933, 221456, 359866, 719732, 1439464, 2878928, 3086543, 6173086, 12346172, 24692344, 40125059, 49384688, 80250118, 160500236, 321000472, 642000944]

約数ペア:

[(1, 642000944), (2, 321000472), (4, 160500236), (8, 80250118), (13, 49384688), (16, 40125059), (26, 24692344), (52, 12346172), (104, 6173086), (208, 3086543), (223, 2878928), (446, 1439464), (892, 719732), (1784, 359866), (2899, 221456), (3568, 179933), (5798, 110728), (11596, 55364), (13841, 46384), (23192, 27682)]