21985318360

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1\times {\mathrm{21419}}^1$

素因数の和:21880

約数の個数: 64

約数和(自身を含む): 50338713600

約数和(自身を除く): 28353395240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 383, 536, 670, 766, 1340, 1532, 1915, 2680, 3064, 3830, 7660, 15320, 21419, 25661, 42838, 51322, 85676, 102644, 107095, 128305, 171352, 205288, 214190, 256610, 428380, 513220, 856760, 1026440, 1435073, 2870146, 5740292, 7175365, 8203477, 11480584, 14350730, 16406954, 28701460, 32813908, 41017385, 57402920, 65627816, 82034770, 164069540, 328139080, 549632959, 1099265918, 2198531836, 2748164795, 4397063672, 5496329590, 10992659180, 21985318360]

約数ペア:

[(1, 21985318360), (2, 10992659180), (4, 5496329590), (5, 4397063672), (8, 2748164795), (10, 2198531836), (20, 1099265918), (40, 549632959), (67, 328139080), (134, 164069540), (268, 82034770), (335, 65627816), (383, 57402920), (536, 41017385), (670, 32813908), (766, 28701460), (1340, 16406954), (1532, 14350730), (1915, 11480584), (2680, 8203477), (3064, 7175365), (3830, 5740292), (7660, 2870146), (15320, 1435073), (21419, 1026440), (25661, 856760), (42838, 513220), (51322, 428380), (85676, 256610), (102644, 214190), (107095, 205288), (128305, 171352)]