78452140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15881}}^1$

素因数の和:15922

約数の個数: 48

約数和(自身を含む): 186772320

約数和(自身を除く): 108320180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 15881, 31762, 63524, 79405, 158810, 206453, 301739, 317620, 412906, 603478, 825812, 1032265, 1206956, 1508695, 2064530, 3017390, 3922607, 4129060, 6034780, 7845214, 15690428, 19613035, 39226070, 78452140]

約数ペア:

[(1, 78452140), (2, 39226070), (4, 19613035), (5, 15690428), (10, 7845214), (13, 6034780), (19, 4129060), (20, 3922607), (26, 3017390), (38, 2064530), (52, 1508695), (65, 1206956), (76, 1032265), (95, 825812), (130, 603478), (190, 412906), (247, 317620), (260, 301739), (380, 206453), (494, 158810), (988, 79405), (1235, 63524), (2470, 31762), (4940, 15881)]