399035760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{727}}^1\times {\mathrm{2287}}^1$

素因数の和:3030

約数の個数: 80

約数和(自身を含む): 1239254016

約数和(自身を除く): 840218256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 727, 1454, 2181, 2287, 2908, 3635, 4362, 4574, 5816, 6861, 7270, 8724, 9148, 10905, 11435, 11632, 13722, 14540, 17448, 18296, 21810, 22870, 27444, 29080, 34305, 34896, 36592, 43620, 45740, 54888, 58160, 68610, 87240, 91480, 109776, 137220, 174480, 182960, 274440, 548880, 1662649, 3325298, 4987947, 6650596, 8313245, 9975894, 13301192, 16626490, 19951788, 24939735, 26602384, 33252980, 39903576, 49879470, 66505960, 79807152, 99758940, 133011920, 199517880, 399035760]

約数ペア:

[(1, 399035760), (2, 199517880), (3, 133011920), (4, 99758940), (5, 79807152), (6, 66505960), (8, 49879470), (10, 39903576), (12, 33252980), (15, 26602384), (16, 24939735), (20, 19951788), (24, 16626490), (30, 13301192), (40, 9975894), (48, 8313245), (60, 6650596), (80, 4987947), (120, 3325298), (240, 1662649), (727, 548880), (1454, 274440), (2181, 182960), (2287, 174480), (2908, 137220), (3635, 109776), (4362, 91480), (4574, 87240), (5816, 68610), (6861, 58160), (7270, 54888), (8724, 45740), (9148, 43620), (10905, 36592), (11435, 34896), (11632, 34305), (13722, 29080), (14540, 27444), (17448, 22870), (18296, 21810)]