204120

素因数分解:

$2^3\times 3^6\times 5^1\times 7^1$

素因数の和:36

約数の個数: 112

約数和(自身を含む): 786960

約数和(自身を除く): 582840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 315, 324, 360, 378, 405, 420, 486, 504, 540, 567, 630, 648, 729, 756, 810, 840, 945, 972, 1080, 1134, 1215, 1260, 1458, 1512, 1620, 1701, 1890, 1944, 2268, 2430, 2520, 2835, 2916, 3240, 3402, 3645, 3780, 4536, 4860, 5103, 5670, 5832, 6804, 7290, 7560, 8505, 9720, 10206, 11340, 13608, 14580, 17010, 20412, 22680, 25515, 29160, 34020, 40824, 51030, 68040, 102060, 204120]

約数ペア:

[(1, 204120), (2, 102060), (3, 68040), (4, 51030), (5, 40824), (6, 34020), (7, 29160), (8, 25515), (9, 22680), (10, 20412), (12, 17010), (14, 14580), (15, 13608), (18, 11340), (20, 10206), (21, 9720), (24, 8505), (27, 7560), (28, 7290), (30, 6804), (35, 5832), (36, 5670), (40, 5103), (42, 4860), (45, 4536), (54, 3780), (56, 3645), (60, 3402), (63, 3240), (70, 2916), (72, 2835), (81, 2520), (84, 2430), (90, 2268), (105, 1944), (108, 1890), (120, 1701), (126, 1620), (135, 1512), (140, 1458), (162, 1260), (168, 1215), (180, 1134), (189, 1080), (210, 972), (216, 945), (243, 840), (252, 810), (270, 756), (280, 729), (315, 648), (324, 630), (360, 567), (378, 540), (405, 504), (420, 486)]