1999620

素因数分解:

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

素因数の和:71

約数の個数: 144

約数和(自身を含む): 7432320

約数和(自身を除く): 5432700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 30, 35, 36, 42, 45, 46, 54, 60, 63, 69, 70, 84, 90, 92, 105, 108, 115, 126, 135, 138, 140, 161, 180, 189, 207, 210, 230, 252, 270, 276, 315, 322, 345, 378, 414, 420, 460, 483, 529, 540, 621, 630, 644, 690, 756, 805, 828, 945, 966, 1035, 1058, 1242, 1260, 1380, 1449, 1587, 1610, 1890, 1932, 2070, 2116, 2415, 2484, 2645, 2898, 3105, 3174, 3220, 3703, 3780, 4140, 4347, 4761, 4830, 5290, 5796, 6210, 6348, 7245, 7406, 7935, 8694, 9522, 9660, 10580, 11109, 12420, 14283, 14490, 14812, 15870, 17388, 18515, 19044, 21735, 22218, 23805, 28566, 28980, 31740, 33327, 37030, 43470, 44436, 47610, 55545, 57132, 66654, 71415, 74060, 86940, 95220, 99981, 111090, 133308, 142830, 166635, 199962, 222180, 285660, 333270, 399924, 499905, 666540, 999810, 1999620]

約数ペア:

[(1, 1999620), (2, 999810), (3, 666540), (4, 499905), (5, 399924), (6, 333270), (7, 285660), (9, 222180), (10, 199962), (12, 166635), (14, 142830), (15, 133308), (18, 111090), (20, 99981), (21, 95220), (23, 86940), (27, 74060), (28, 71415), (30, 66654), (35, 57132), (36, 55545), (42, 47610), (45, 44436), (46, 43470), (54, 37030), (60, 33327), (63, 31740), (69, 28980), (70, 28566), (84, 23805), (90, 22218), (92, 21735), (105, 19044), (108, 18515), (115, 17388), (126, 15870), (135, 14812), (138, 14490), (140, 14283), (161, 12420), (180, 11109), (189, 10580), (207, 9660), (210, 9522), (230, 8694), (252, 7935), (270, 7406), (276, 7245), (315, 6348), (322, 6210), (345, 5796), (378, 5290), (414, 4830), (420, 4761), (460, 4347), (483, 4140), (529, 3780), (540, 3703), (621, 3220), (630, 3174), (644, 3105), (690, 2898), (756, 2645), (805, 2484), (828, 2415), (945, 2116), (966, 2070), (1035, 1932), (1058, 1890), (1242, 1610), (1260, 1587), (1380, 1449)]