1901380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 4402944

約数和(自身を除く): 2501564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 103, 130, 142, 206, 260, 284, 355, 412, 515, 710, 923, 1030, 1339, 1420, 1846, 2060, 2678, 3692, 4615, 5356, 6695, 7313, 9230, 13390, 14626, 18460, 26780, 29252, 36565, 73130, 95069, 146260, 190138, 380276, 475345, 950690, 1901380]

約数ペア:

[(1, 1901380), (2, 950690), (4, 475345), (5, 380276), (10, 190138), (13, 146260), (20, 95069), (26, 73130), (52, 36565), (65, 29252), (71, 26780), (103, 18460), (130, 14626), (142, 13390), (206, 9230), (260, 7313), (284, 6695), (355, 5356), (412, 4615), (515, 3692), (710, 2678), (923, 2060), (1030, 1846), (1339, 1420)]