19860840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1283}}^1$

素因数の和:1343

約数の個数: 96

約数和(自身を含む): 66100320

約数和(自身を除く): 46239480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 72, 86, 90, 120, 129, 172, 180, 215, 258, 344, 360, 387, 430, 516, 645, 774, 860, 1032, 1283, 1290, 1548, 1720, 1935, 2566, 2580, 3096, 3849, 3870, 5132, 5160, 6415, 7698, 7740, 10264, 11547, 12830, 15396, 15480, 19245, 23094, 25660, 30792, 38490, 46188, 51320, 55169, 57735, 76980, 92376, 110338, 115470, 153960, 165507, 220676, 230940, 275845, 331014, 441352, 461880, 496521, 551690, 662028, 827535, 993042, 1103380, 1324056, 1655070, 1986084, 2206760, 2482605, 3310140, 3972168, 4965210, 6620280, 9930420, 19860840]

約数ペア:

[(1, 19860840), (2, 9930420), (3, 6620280), (4, 4965210), (5, 3972168), (6, 3310140), (8, 2482605), (9, 2206760), (10, 1986084), (12, 1655070), (15, 1324056), (18, 1103380), (20, 993042), (24, 827535), (30, 662028), (36, 551690), (40, 496521), (43, 461880), (45, 441352), (60, 331014), (72, 275845), (86, 230940), (90, 220676), (120, 165507), (129, 153960), (172, 115470), (180, 110338), (215, 92376), (258, 76980), (344, 57735), (360, 55169), (387, 51320), (430, 46188), (516, 38490), (645, 30792), (774, 25660), (860, 23094), (1032, 19245), (1283, 15480), (1290, 15396), (1548, 12830), (1720, 11547), (1935, 10264), (2566, 7740), (2580, 7698), (3096, 6415), (3849, 5160), (3870, 5132)]