19663220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{383}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 24462988

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 151, 170, 302, 340, 383, 604, 755, 766, 1510, 1532, 1915, 2567, 3020, 3830, 5134, 6511, 7660, 10268, 12835, 13022, 25670, 26044, 32555, 51340, 57833, 65110, 115666, 130220, 231332, 289165, 578330, 983161, 1156660, 1966322, 3932644, 4915805, 9831610, 19663220]

約数ペア:

[(1, 19663220), (2, 9831610), (4, 4915805), (5, 3932644), (10, 1966322), (17, 1156660), (20, 983161), (34, 578330), (68, 289165), (85, 231332), (151, 130220), (170, 115666), (302, 65110), (340, 57833), (383, 51340), (604, 32555), (755, 26044), (766, 25670), (1510, 13022), (1532, 12835), (1915, 10268), (2567, 7660), (3020, 6511), (3830, 5134)]