64681940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1847}}^1$

素因数の和:1976

約数の個数: 48

約数和(自身を含む): 145297152

約数和(自身を除く): 80615212

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 103, 170, 206, 340, 412, 515, 1030, 1751, 1847, 2060, 3502, 3694, 7004, 7388, 8755, 9235, 17510, 18470, 31399, 35020, 36940, 62798, 125596, 156995, 190241, 313990, 380482, 627980, 760964, 951205, 1902410, 3234097, 3804820, 6468194, 12936388, 16170485, 32340970, 64681940]

約数ペア:

[(1, 64681940), (2, 32340970), (4, 16170485), (5, 12936388), (10, 6468194), (17, 3804820), (20, 3234097), (34, 1902410), (68, 951205), (85, 760964), (103, 627980), (170, 380482), (206, 313990), (340, 190241), (412, 156995), (515, 125596), (1030, 62798), (1751, 36940), (1847, 35020), (2060, 31399), (3502, 18470), (3694, 17510), (7004, 9235), (7388, 8755)]