72121720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{8627}}^1$

素因数の和:8668

約数の個数: 64

約数和(自身を含む): 186364800

約数和(自身を除く): 114243080

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 4180, 8360, 8627, 17254, 34508, 43135, 69016, 86270, 94897, 163913, 172540, 189794, 327826, 345080, 379588, 474485, 655652, 759176, 819565, 948970, 1311304, 1639130, 1803043, 1897940, 3278260, 3606086, 3795880, 6556520, 7212172, 9015215, 14424344, 18030430, 36060860, 72121720]

約数ペア:

[(1, 72121720), (2, 36060860), (4, 18030430), (5, 14424344), (8, 9015215), (10, 7212172), (11, 6556520), (19, 3795880), (20, 3606086), (22, 3278260), (38, 1897940), (40, 1803043), (44, 1639130), (55, 1311304), (76, 948970), (88, 819565), (95, 759176), (110, 655652), (152, 474485), (190, 379588), (209, 345080), (220, 327826), (380, 189794), (418, 172540), (440, 163913), (760, 94897), (836, 86270), (1045, 69016), (1672, 43135), (2090, 34508), (4180, 17254), (8360, 8627)]