17968440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{21391}}^1$

素因数の和:21412

約数の個数: 64

約数和(自身を含む): 61608960

約数和(自身を除く): 43640520

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, 21391, 42782, 64173, 85564, 106955, 128346, 149737, 171128, 213910, 256692, 299474, 320865, 427820, 449211, 513384, 598948, 641730, 748685, 855640, 898422, 1197896, 1283460, 1497370, 1796844, 2246055, 2566920, 2994740, 3593688, 4492110, 5989480, 8984220, 17968440]

約数ペア:

[(1, 17968440), (2, 8984220), (3, 5989480), (4, 4492110), (5, 3593688), (6, 2994740), (7, 2566920), (8, 2246055), (10, 1796844), (12, 1497370), (14, 1283460), (15, 1197896), (20, 898422), (21, 855640), (24, 748685), (28, 641730), (30, 598948), (35, 513384), (40, 449211), (42, 427820), (56, 320865), (60, 299474), (70, 256692), (84, 213910), (105, 171128), (120, 149737), (140, 128346), (168, 106955), (210, 85564), (280, 64173), (420, 42782), (840, 21391)]