178620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 540960

約数和(自身を除く): 362340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 229, 260, 390, 458, 687, 780, 916, 1145, 1374, 2290, 2748, 2977, 3435, 4580, 5954, 6870, 8931, 11908, 13740, 14885, 17862, 29770, 35724, 44655, 59540, 89310, 178620]

約数ペア:

[(1, 178620), (2, 89310), (3, 59540), (4, 44655), (5, 35724), (6, 29770), (10, 17862), (12, 14885), (13, 13740), (15, 11908), (20, 8931), (26, 6870), (30, 5954), (39, 4580), (52, 3435), (60, 2977), (65, 2748), (78, 2290), (130, 1374), (156, 1145), (195, 916), (229, 780), (260, 687), (390, 458)]