666540

素因数分解:

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

素因数の和:68

約数の個数: 108

約数和(自身を含む): 2415504

約数和(自身を除く): 1748964

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 529, 630, 644, 690, 805, 828, 966, 1035, 1058, 1260, 1380, 1449, 1587, 1610, 1932, 2070, 2116, 2415, 2645, 2898, 3174, 3220, 3703, 4140, 4761, 4830, 5290, 5796, 6348, 7245, 7406, 7935, 9522, 9660, 10580, 11109, 14490, 14812, 15870, 18515, 19044, 22218, 23805, 28980, 31740, 33327, 37030, 44436, 47610, 55545, 66654, 74060, 95220, 111090, 133308, 166635, 222180, 333270, 666540]

約数ペア:

[(1, 666540), (2, 333270), (3, 222180), (4, 166635), (5, 133308), (6, 111090), (7, 95220), (9, 74060), (10, 66654), (12, 55545), (14, 47610), (15, 44436), (18, 37030), (20, 33327), (21, 31740), (23, 28980), (28, 23805), (30, 22218), (35, 19044), (36, 18515), (42, 15870), (45, 14812), (46, 14490), (60, 11109), (63, 10580), (69, 9660), (70, 9522), (84, 7935), (90, 7406), (92, 7245), (105, 6348), (115, 5796), (126, 5290), (138, 4830), (140, 4761), (161, 4140), (180, 3703), (207, 3220), (210, 3174), (230, 2898), (252, 2645), (276, 2415), (315, 2116), (322, 2070), (345, 1932), (414, 1610), (420, 1587), (460, 1449), (483, 1380), (529, 1260), (630, 1058), (644, 1035), (690, 966), (805, 828)]