20512114840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3185111}}^1$

素因数の和:3185152

約数の個数: 64

約数和(自身を含む): 55038735360

約数和(自身を除く): 34526620520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 3185111, 6370222, 12740444, 15925555, 22295777, 25480888, 31851110, 44591554, 63702220, 73257553, 89183108, 111478885, 127404440, 146515106, 178366216, 222957770, 293030212, 366287765, 445915540, 512802871, 586060424, 732575530, 891831080, 1025605742, 1465151060, 2051211484, 2564014355, 2930302120, 4102422968, 5128028710, 10256057420, 20512114840]

約数ペア:

[(1, 20512114840), (2, 10256057420), (4, 5128028710), (5, 4102422968), (7, 2930302120), (8, 2564014355), (10, 2051211484), (14, 1465151060), (20, 1025605742), (23, 891831080), (28, 732575530), (35, 586060424), (40, 512802871), (46, 445915540), (56, 366287765), (70, 293030212), (92, 222957770), (115, 178366216), (140, 146515106), (161, 127404440), (184, 111478885), (230, 89183108), (280, 73257553), (322, 63702220), (460, 44591554), (644, 31851110), (805, 25480888), (920, 22295777), (1288, 15925555), (1610, 12740444), (3220, 6370222), (6440, 3185111)]