815640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{971}}^1$

素因数の和:992

約数の個数: 64

約数和(自身を含む): 2799360

約数和(自身を除く): 1983720

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, 971, 1942, 2913, 3884, 4855, 5826, 6797, 7768, 9710, 11652, 13594, 14565, 19420, 20391, 23304, 27188, 29130, 33985, 38840, 40782, 54376, 58260, 67970, 81564, 101955, 116520, 135940, 163128, 203910, 271880, 407820, 815640]

約数ペア:

[(1, 815640), (2, 407820), (3, 271880), (4, 203910), (5, 163128), (6, 135940), (7, 116520), (8, 101955), (10, 81564), (12, 67970), (14, 58260), (15, 54376), (20, 40782), (21, 38840), (24, 33985), (28, 29130), (30, 27188), (35, 23304), (40, 20391), (42, 19420), (56, 14565), (60, 13594), (70, 11652), (84, 9710), (105, 7768), (120, 6797), (140, 5826), (168, 4855), (210, 3884), (280, 2913), (420, 1942), (840, 971)]