212457180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{272381}}^1$

素因数の和:272406

約数の個数: 48

約数和(自身を含む): 640642464

約数和(自身を除く): 428185284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 272381, 544762, 817143, 1089524, 1361905, 1634286, 2723810, 3268572, 3540953, 4085715, 5447620, 7081906, 8171430, 10622859, 14163812, 16342860, 17704765, 21245718, 35409530, 42491436, 53114295, 70819060, 106228590, 212457180]

約数ペア:

[(1, 212457180), (2, 106228590), (3, 70819060), (4, 53114295), (5, 42491436), (6, 35409530), (10, 21245718), (12, 17704765), (13, 16342860), (15, 14163812), (20, 10622859), (26, 8171430), (30, 7081906), (39, 5447620), (52, 4085715), (60, 3540953), (65, 3268572), (78, 2723810), (130, 1634286), (156, 1361905), (195, 1089524), (260, 817143), (390, 544762), (780, 272381)]