311672556

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{221989}}^1$

素因数の和:222015

約数の個数: 48

約数和(自身を含む): 870200800

約数和(自身を除く): 558528244

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 221989, 443978, 665967, 887956, 1331934, 1997901, 2663868, 2885857, 3995802, 5771714, 5993703, 7991604, 8657571, 11543428, 11987406, 17315142, 23974812, 25972713, 34630284, 51945426, 77918139, 103890852, 155836278, 311672556]

約数ペア:

[(1, 311672556), (2, 155836278), (3, 103890852), (4, 77918139), (6, 51945426), (9, 34630284), (12, 25972713), (13, 23974812), (18, 17315142), (26, 11987406), (27, 11543428), (36, 8657571), (39, 7991604), (52, 5993703), (54, 5771714), (78, 3995802), (108, 2885857), (117, 2663868), (156, 1997901), (234, 1331934), (351, 887956), (468, 665967), (702, 443978), (1404, 221989)]