6688820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 15095808

約数和(自身を除く): 8406988

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 103, 170, 191, 206, 340, 382, 412, 515, 764, 955, 1030, 1751, 1910, 2060, 3247, 3502, 3820, 6494, 7004, 8755, 12988, 16235, 17510, 19673, 32470, 35020, 39346, 64940, 78692, 98365, 196730, 334441, 393460, 668882, 1337764, 1672205, 3344410, 6688820]

約数ペア:

[(1, 6688820), (2, 3344410), (4, 1672205), (5, 1337764), (10, 668882), (17, 393460), (20, 334441), (34, 196730), (68, 98365), (85, 78692), (103, 64940), (170, 39346), (191, 35020), (206, 32470), (340, 19673), (382, 17510), (412, 16235), (515, 12988), (764, 8755), (955, 7004), (1030, 6494), (1751, 3820), (1910, 3502), (2060, 3247)]