18692440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 45864000

約数和(自身を除く): 27171560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 103, 104, 130, 206, 260, 349, 412, 515, 520, 698, 824, 1030, 1339, 1396, 1745, 2060, 2678, 2792, 3490, 4120, 4537, 5356, 6695, 6980, 9074, 10712, 13390, 13960, 18148, 22685, 26780, 35947, 36296, 45370, 53560, 71894, 90740, 143788, 179735, 181480, 287576, 359470, 467311, 718940, 934622, 1437880, 1869244, 2336555, 3738488, 4673110, 9346220, 18692440]

約数ペア:

[(1, 18692440), (2, 9346220), (4, 4673110), (5, 3738488), (8, 2336555), (10, 1869244), (13, 1437880), (20, 934622), (26, 718940), (40, 467311), (52, 359470), (65, 287576), (103, 181480), (104, 179735), (130, 143788), (206, 90740), (260, 71894), (349, 53560), (412, 45370), (515, 36296), (520, 35947), (698, 26780), (824, 22685), (1030, 18148), (1339, 13960), (1396, 13390), (1745, 10712), (2060, 9074), (2678, 6980), (2792, 6695), (3490, 5356), (4120, 4537)]