219496784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:348

約数の個数: 80

約数和(自身を含む): 472469760

約数和(自身を除く): 252972976

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 89, 104, 142, 167, 178, 208, 284, 334, 356, 568, 668, 712, 923, 1136, 1157, 1336, 1424, 1846, 2171, 2314, 2672, 3692, 4342, 4628, 6319, 7384, 8684, 9256, 11857, 12638, 14768, 14863, 17368, 18512, 23714, 25276, 29726, 34736, 47428, 50552, 59452, 82147, 94856, 101104, 118904, 154141, 164294, 189712, 193219, 237808, 308282, 328588, 386438, 616564, 657176, 772876, 1055273, 1233128, 1314352, 1545752, 2110546, 2466256, 3091504, 4221092, 8442184, 13718549, 16884368, 27437098, 54874196, 109748392, 219496784]

約数ペア:

[(1, 219496784), (2, 109748392), (4, 54874196), (8, 27437098), (13, 16884368), (16, 13718549), (26, 8442184), (52, 4221092), (71, 3091504), (89, 2466256), (104, 2110546), (142, 1545752), (167, 1314352), (178, 1233128), (208, 1055273), (284, 772876), (334, 657176), (356, 616564), (568, 386438), (668, 328588), (712, 308282), (923, 237808), (1136, 193219), (1157, 189712), (1336, 164294), (1424, 154141), (1846, 118904), (2171, 101104), (2314, 94856), (2672, 82147), (3692, 59452), (4342, 50552), (4628, 47428), (6319, 34736), (7384, 29726), (8684, 25276), (9256, 23714), (11857, 18512), (12638, 17368), (14768, 14863)]