202009720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{459113}}^1$

素因数の和:459135

約数の個数: 32

約数和(自身を含む): 495843120

約数和(自身を除く): 293833400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 459113, 918226, 1836452, 2295565, 3672904, 4591130, 5050243, 9182260, 10100486, 18364520, 20200972, 25251215, 40401944, 50502430, 101004860, 202009720]

約数ペア:

[(1, 202009720), (2, 101004860), (4, 50502430), (5, 40401944), (8, 25251215), (10, 20200972), (11, 18364520), (20, 10100486), (22, 9182260), (40, 5050243), (44, 4591130), (55, 3672904), (88, 2295565), (110, 1836452), (220, 918226), (440, 459113)]