19490490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1951}}^1$

素因数の和:2004

約数の個数: 64

約数和(自身を含む): 53406720

約数和(自身を除く): 33916230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1951, 1998, 3330, 3902, 4995, 5853, 9755, 9990, 11706, 17559, 19510, 29265, 35118, 52677, 58530, 72187, 87795, 105354, 144374, 175590, 216561, 263385, 360935, 433122, 526770, 649683, 721870, 1082805, 1299366, 1949049, 2165610, 3248415, 3898098, 6496830, 9745245, 19490490]

約数ペア:

[(1, 19490490), (2, 9745245), (3, 6496830), (5, 3898098), (6, 3248415), (9, 2165610), (10, 1949049), (15, 1299366), (18, 1082805), (27, 721870), (30, 649683), (37, 526770), (45, 433122), (54, 360935), (74, 263385), (90, 216561), (111, 175590), (135, 144374), (185, 105354), (222, 87795), (270, 72187), (333, 58530), (370, 52677), (555, 35118), (666, 29265), (999, 19510), (1110, 17559), (1665, 11706), (1951, 9990), (1998, 9755), (3330, 5853), (3902, 4995)]