138389240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{769}}^1$

素因数の和:1200

約数の個数: 64

約数和(自身を含む): 340956000

約数和(自身を除く): 202566760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 409, 440, 769, 818, 1538, 1636, 2045, 3076, 3272, 3845, 4090, 4499, 6152, 7690, 8180, 8459, 8998, 15380, 16360, 16918, 17996, 22495, 30760, 33836, 35992, 42295, 44990, 67672, 84590, 89980, 169180, 179960, 314521, 338360, 629042, 1258084, 1572605, 2516168, 3145210, 3459731, 6290420, 6919462, 12580840, 13838924, 17298655, 27677848, 34597310, 69194620, 138389240]

約数ペア:

[(1, 138389240), (2, 69194620), (4, 34597310), (5, 27677848), (8, 17298655), (10, 13838924), (11, 12580840), (20, 6919462), (22, 6290420), (40, 3459731), (44, 3145210), (55, 2516168), (88, 1572605), (110, 1258084), (220, 629042), (409, 338360), (440, 314521), (769, 179960), (818, 169180), (1538, 89980), (1636, 84590), (2045, 67672), (3076, 44990), (3272, 42295), (3845, 35992), (4090, 33836), (4499, 30760), (6152, 22495), (7690, 17996), (8180, 16918), (8459, 16360), (8998, 15380)]