19228040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{359}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 27946360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 103, 104, 130, 206, 260, 359, 412, 515, 520, 718, 824, 1030, 1339, 1436, 1795, 2060, 2678, 2872, 3590, 4120, 4667, 5356, 6695, 7180, 9334, 10712, 13390, 14360, 18668, 23335, 26780, 36977, 37336, 46670, 53560, 73954, 93340, 147908, 184885, 186680, 295816, 369770, 480701, 739540, 961402, 1479080, 1922804, 2403505, 3845608, 4807010, 9614020, 19228040]

約数ペア:

[(1, 19228040), (2, 9614020), (4, 4807010), (5, 3845608), (8, 2403505), (10, 1922804), (13, 1479080), (20, 961402), (26, 739540), (40, 480701), (52, 369770), (65, 295816), (103, 186680), (104, 184885), (130, 147908), (206, 93340), (260, 73954), (359, 53560), (412, 46670), (515, 37336), (520, 36977), (718, 26780), (824, 23335), (1030, 18668), (1339, 14360), (1436, 13390), (1795, 10712), (2060, 9334), (2678, 7180), (2872, 6695), (3590, 5356), (4120, 4667)]