2100840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 128

約数和(自身を含む): 7499520

約数和(自身を除く): 5398680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 61, 70, 82, 84, 105, 120, 122, 123, 140, 164, 168, 183, 205, 210, 244, 246, 280, 287, 305, 328, 366, 410, 420, 427, 488, 492, 574, 610, 615, 732, 820, 840, 854, 861, 915, 984, 1148, 1220, 1230, 1281, 1435, 1464, 1640, 1708, 1722, 1830, 2135, 2296, 2440, 2460, 2501, 2562, 2870, 3416, 3444, 3660, 4270, 4305, 4920, 5002, 5124, 5740, 6405, 6888, 7320, 7503, 8540, 8610, 10004, 10248, 11480, 12505, 12810, 15006, 17080, 17220, 17507, 20008, 25010, 25620, 30012, 34440, 35014, 37515, 50020, 51240, 52521, 60024, 70028, 75030, 87535, 100040, 105042, 140056, 150060, 175070, 210084, 262605, 300120, 350140, 420168, 525210, 700280, 1050420, 2100840]

約数ペア:

[(1, 2100840), (2, 1050420), (3, 700280), (4, 525210), (5, 420168), (6, 350140), (7, 300120), (8, 262605), (10, 210084), (12, 175070), (14, 150060), (15, 140056), (20, 105042), (21, 100040), (24, 87535), (28, 75030), (30, 70028), (35, 60024), (40, 52521), (41, 51240), (42, 50020), (56, 37515), (60, 35014), (61, 34440), (70, 30012), (82, 25620), (84, 25010), (105, 20008), (120, 17507), (122, 17220), (123, 17080), (140, 15006), (164, 12810), (168, 12505), (183, 11480), (205, 10248), (210, 10004), (244, 8610), (246, 8540), (280, 7503), (287, 7320), (305, 6888), (328, 6405), (366, 5740), (410, 5124), (420, 5002), (427, 4920), (488, 4305), (492, 4270), (574, 3660), (610, 3444), (615, 3416), (732, 2870), (820, 2562), (840, 2501), (854, 2460), (861, 2440), (915, 2296), (984, 2135), (1148, 1830), (1220, 1722), (1230, 1708), (1281, 1640), (1435, 1464)]