219886960

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^2\times {\mathrm{347}}^1$

素因数の和:538

約数の個数: 60

約数和(自身を含む): 518536008

約数和(自身を除く): 298649048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 347, 356, 445, 694, 712, 890, 1388, 1424, 1735, 1780, 2776, 3470, 3560, 5552, 6940, 7120, 7921, 13880, 15842, 27760, 30883, 31684, 39605, 61766, 63368, 79210, 123532, 126736, 154415, 158420, 247064, 308830, 316840, 494128, 617660, 633680, 1235320, 2470640, 2748587, 5497174, 10994348, 13742935, 21988696, 27485870, 43977392, 54971740, 109943480, 219886960]

約数ペア:

[(1, 219886960), (2, 109943480), (4, 54971740), (5, 43977392), (8, 27485870), (10, 21988696), (16, 13742935), (20, 10994348), (40, 5497174), (80, 2748587), (89, 2470640), (178, 1235320), (347, 633680), (356, 617660), (445, 494128), (694, 316840), (712, 308830), (890, 247064), (1388, 158420), (1424, 154415), (1735, 126736), (1780, 123532), (2776, 79210), (3470, 63368), (3560, 61766), (5552, 39605), (6940, 31684), (7120, 30883), (7921, 27760), (13880, 15842)]