18684990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7159}}^1$

素因数の和:7201

約数の個数: 48

約数和(自身を含む): 50263200

約数和(自身を除く): 31578210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 7159, 14318, 21477, 35795, 42954, 64431, 71590, 107385, 128862, 207611, 214770, 322155, 415222, 622833, 644310, 1038055, 1245666, 1868499, 2076110, 3114165, 3736998, 6228330, 9342495, 18684990]

約数ペア:

[(1, 18684990), (2, 9342495), (3, 6228330), (5, 3736998), (6, 3114165), (9, 2076110), (10, 1868499), (15, 1245666), (18, 1038055), (29, 644310), (30, 622833), (45, 415222), (58, 322155), (87, 214770), (90, 207611), (145, 128862), (174, 107385), (261, 71590), (290, 64431), (435, 42954), (522, 35795), (870, 21477), (1305, 14318), (2610, 7159)]