400366960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{1367}}^1$

素因数の和:1910

約数の個数: 80

約数和(自身を含む): 1066646016

約数和(自身を除く): 666279056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 523, 560, 1046, 1367, 2092, 2615, 2734, 3661, 4184, 5230, 5468, 6835, 7322, 8368, 9569, 10460, 10936, 13670, 14644, 18305, 19138, 20920, 21872, 27340, 29288, 36610, 38276, 41840, 47845, 54680, 58576, 73220, 76552, 95690, 109360, 146440, 153104, 191380, 292880, 382760, 714941, 765520, 1429882, 2859764, 3574705, 5004587, 5719528, 7149410, 10009174, 11439056, 14298820, 20018348, 25022935, 28597640, 40036696, 50045870, 57195280, 80073392, 100091740, 200183480, 400366960]

約数ペア:

[(1, 400366960), (2, 200183480), (4, 100091740), (5, 80073392), (7, 57195280), (8, 50045870), (10, 40036696), (14, 28597640), (16, 25022935), (20, 20018348), (28, 14298820), (35, 11439056), (40, 10009174), (56, 7149410), (70, 5719528), (80, 5004587), (112, 3574705), (140, 2859764), (280, 1429882), (523, 765520), (560, 714941), (1046, 382760), (1367, 292880), (2092, 191380), (2615, 153104), (2734, 146440), (3661, 109360), (4184, 95690), (5230, 76552), (5468, 73220), (6835, 58576), (7322, 54680), (8368, 47845), (9569, 41840), (10460, 38276), (10936, 36610), (13670, 29288), (14644, 27340), (18305, 21872), (19138, 20920)]