18362540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4231}}^1$

素因数の和:4278

約数の個数: 48

約数和(自身を含む): 45502464

約数和(自身を除く): 27139924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4231, 4340, 8462, 16924, 21155, 29617, 42310, 59234, 84620, 118468, 131161, 148085, 262322, 296170, 524644, 592340, 655805, 918127, 1311610, 1836254, 2623220, 3672508, 4590635, 9181270, 18362540]

約数ペア:

[(1, 18362540), (2, 9181270), (4, 4590635), (5, 3672508), (7, 2623220), (10, 1836254), (14, 1311610), (20, 918127), (28, 655805), (31, 592340), (35, 524644), (62, 296170), (70, 262322), (124, 148085), (140, 131161), (155, 118468), (217, 84620), (310, 59234), (434, 42310), (620, 29617), (868, 21155), (1085, 16924), (2170, 8462), (4231, 4340)]