219657620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{120691}}^1$

素因数の和:120720

約数の個数: 48

約数和(自身を含む): 567735168

約数和(自身を除く): 348077548

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 120691, 241382, 482764, 603455, 844837, 1206910, 1568983, 1689674, 2413820, 3137966, 3379348, 4224185, 6275932, 7844915, 8448370, 10982881, 15689830, 16896740, 21965762, 31379660, 43931524, 54914405, 109828810, 219657620]

約数ペア:

[(1, 219657620), (2, 109828810), (4, 54914405), (5, 43931524), (7, 31379660), (10, 21965762), (13, 16896740), (14, 15689830), (20, 10982881), (26, 8448370), (28, 7844915), (35, 6275932), (52, 4224185), (65, 3379348), (70, 3137966), (91, 2413820), (130, 1689674), (140, 1568983), (182, 1206910), (260, 844837), (364, 603455), (455, 482764), (910, 241382), (1820, 120691)]