80118640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1811}}^1$

素因数の和:1910

約数の個数: 80

約数和(自身を含む): 215700480

約数和(自身を除く): 135581840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 790, 1106, 1264, 1580, 1811, 2212, 2765, 3160, 3622, 4424, 5530, 6320, 7244, 8848, 9055, 11060, 12677, 14488, 18110, 22120, 25354, 28976, 36220, 44240, 50708, 63385, 72440, 101416, 126770, 143069, 144880, 202832, 253540, 286138, 507080, 572276, 715345, 1001483, 1014160, 1144552, 1430690, 2002966, 2289104, 2861380, 4005932, 5007415, 5722760, 8011864, 10014830, 11445520, 16023728, 20029660, 40059320, 80118640]

約数ペア:

[(1, 80118640), (2, 40059320), (4, 20029660), (5, 16023728), (7, 11445520), (8, 10014830), (10, 8011864), (14, 5722760), (16, 5007415), (20, 4005932), (28, 2861380), (35, 2289104), (40, 2002966), (56, 1430690), (70, 1144552), (79, 1014160), (80, 1001483), (112, 715345), (140, 572276), (158, 507080), (280, 286138), (316, 253540), (395, 202832), (553, 144880), (560, 143069), (632, 126770), (790, 101416), (1106, 72440), (1264, 63385), (1580, 50708), (1811, 44240), (2212, 36220), (2765, 28976), (3160, 25354), (3622, 22120), (4424, 18110), (5530, 14488), (6320, 12677), (7244, 11060), (8848, 9055)]