8021960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 19595520

約数和(自身を除く): 11573560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 251, 340, 376, 470, 502, 680, 799, 940, 1004, 1255, 1598, 1880, 2008, 2510, 3196, 3995, 4267, 5020, 6392, 7990, 8534, 10040, 11797, 15980, 17068, 21335, 23594, 31960, 34136, 42670, 47188, 58985, 85340, 94376, 117970, 170680, 200549, 235940, 401098, 471880, 802196, 1002745, 1604392, 2005490, 4010980, 8021960]

約数ペア:

[(1, 8021960), (2, 4010980), (4, 2005490), (5, 1604392), (8, 1002745), (10, 802196), (17, 471880), (20, 401098), (34, 235940), (40, 200549), (47, 170680), (68, 117970), (85, 94376), (94, 85340), (136, 58985), (170, 47188), (188, 42670), (235, 34136), (251, 31960), (340, 23594), (376, 21335), (470, 17068), (502, 15980), (680, 11797), (799, 10040), (940, 8534), (1004, 7990), (1255, 6392), (1598, 5020), (1880, 4267), (2008, 3995), (2510, 3196)]