18144840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{21601}}^1$

素因数の和:21622

約数の個数: 64

約数和(自身を含む): 62213760

約数和(自身を除く): 44068920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 21601, 43202, 64803, 86404, 108005, 129606, 151207, 172808, 216010, 259212, 302414, 324015, 432020, 453621, 518424, 604828, 648030, 756035, 864040, 907242, 1209656, 1296060, 1512070, 1814484, 2268105, 2592120, 3024140, 3628968, 4536210, 6048280, 9072420, 18144840]

約数ペア:

[(1, 18144840), (2, 9072420), (3, 6048280), (4, 4536210), (5, 3628968), (6, 3024140), (7, 2592120), (8, 2268105), (10, 1814484), (12, 1512070), (14, 1296060), (15, 1209656), (20, 907242), (21, 864040), (24, 756035), (28, 648030), (30, 604828), (35, 518424), (40, 453621), (42, 432020), (56, 324015), (60, 302414), (70, 259212), (84, 216010), (105, 172808), (120, 151207), (140, 129606), (168, 108005), (210, 86404), (280, 64803), (420, 43202), (840, 21601)]