80823915

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 145768896

約数和(自身を除く): 64944981

約数列:

[1, 3, 5, 9, 15, 41, 45, 71, 123, 205, 213, 355, 369, 615, 617, 639, 1065, 1845, 1851, 2911, 3085, 3195, 5553, 8733, 9255, 14555, 25297, 26199, 27765, 43665, 43807, 75891, 126485, 130995, 131421, 219035, 227673, 379455, 394263, 657105, 1138365, 1796087, 1971315, 5388261, 8980435, 16164783, 26941305, 80823915]

約数ペア:

[(1, 80823915), (3, 26941305), (5, 16164783), (9, 8980435), (15, 5388261), (41, 1971315), (45, 1796087), (71, 1138365), (123, 657105), (205, 394263), (213, 379455), (355, 227673), (369, 219035), (615, 131421), (617, 130995), (639, 126485), (1065, 75891), (1845, 43807), (1851, 43665), (2911, 27765), (3085, 26199), (3195, 25297), (5553, 14555), (8733, 9255)]