256087280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{3331}}^1$

素因数の和:3406

約数の個数: 60

約数和(自身を含む): 615413736

約数和(自身を除く): 359326456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 961, 1240, 1922, 2480, 3331, 3844, 4805, 6662, 7688, 9610, 13324, 15376, 16655, 19220, 26648, 33310, 38440, 53296, 66620, 76880, 103261, 133240, 206522, 266480, 413044, 516305, 826088, 1032610, 1652176, 2065220, 3201091, 4130440, 6402182, 8260880, 12804364, 16005455, 25608728, 32010910, 51217456, 64021820, 128043640, 256087280]

約数ペア:

[(1, 256087280), (2, 128043640), (4, 64021820), (5, 51217456), (8, 32010910), (10, 25608728), (16, 16005455), (20, 12804364), (31, 8260880), (40, 6402182), (62, 4130440), (80, 3201091), (124, 2065220), (155, 1652176), (248, 1032610), (310, 826088), (496, 516305), (620, 413044), (961, 266480), (1240, 206522), (1922, 133240), (2480, 103261), (3331, 76880), (3844, 66620), (4805, 53296), (6662, 38440), (7688, 33310), (9610, 26648), (13324, 19220), (15376, 16655)]