220638160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2069}}^1$

素因数の和:2156

約数の個数: 80

約数和(自身を含む): 542108160

約数和(自身を除く): 321470000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 43, 62, 80, 86, 124, 155, 172, 215, 248, 310, 344, 430, 496, 620, 688, 860, 1240, 1333, 1720, 2069, 2480, 2666, 3440, 4138, 5332, 6665, 8276, 10345, 10664, 13330, 16552, 20690, 21328, 26660, 33104, 41380, 53320, 64139, 82760, 88967, 106640, 128278, 165520, 177934, 256556, 320695, 355868, 444835, 513112, 641390, 711736, 889670, 1026224, 1282780, 1423472, 1779340, 2565560, 2757977, 3558680, 5131120, 5515954, 7117360, 11031908, 13789885, 22063816, 27579770, 44127632, 55159540, 110319080, 220638160]

約数ペア:

[(1, 220638160), (2, 110319080), (4, 55159540), (5, 44127632), (8, 27579770), (10, 22063816), (16, 13789885), (20, 11031908), (31, 7117360), (40, 5515954), (43, 5131120), (62, 3558680), (80, 2757977), (86, 2565560), (124, 1779340), (155, 1423472), (172, 1282780), (215, 1026224), (248, 889670), (310, 711736), (344, 641390), (430, 513112), (496, 444835), (620, 355868), (688, 320695), (860, 256556), (1240, 177934), (1333, 165520), (1720, 128278), (2069, 106640), (2480, 88967), (2666, 82760), (3440, 64139), (4138, 53320), (5332, 41380), (6665, 33104), (8276, 26660), (10345, 21328), (10664, 20690), (13330, 16552)]