1396920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{1663}}^1$

素因数の和:1684

約数の個数: 64

約数和(自身を含む): 4792320

約数和(自身を除く): 3395400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1663, 3326, 4989, 6652, 8315, 9978, 11641, 13304, 16630, 19956, 23282, 24945, 33260, 34923, 39912, 46564, 49890, 58205, 66520, 69846, 93128, 99780, 116410, 139692, 174615, 199560, 232820, 279384, 349230, 465640, 698460, 1396920]

約数ペア:

[(1, 1396920), (2, 698460), (3, 465640), (4, 349230), (5, 279384), (6, 232820), (7, 199560), (8, 174615), (10, 139692), (12, 116410), (14, 99780), (15, 93128), (20, 69846), (21, 66520), (24, 58205), (28, 49890), (30, 46564), (35, 39912), (40, 34923), (42, 33260), (56, 24945), (60, 23282), (70, 19956), (84, 16630), (105, 13304), (120, 11641), (140, 9978), (168, 8315), (210, 6652), (280, 4989), (420, 3326), (840, 1663)]