1997520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:93

約数の個数: 160

約数和(自身を含む): 7499520

約数和(自身を除く): 5502000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 35, 40, 41, 42, 48, 56, 58, 60, 70, 80, 82, 84, 87, 105, 112, 116, 120, 123, 140, 145, 164, 168, 174, 203, 205, 210, 232, 240, 246, 280, 287, 290, 328, 336, 348, 406, 410, 420, 435, 464, 492, 560, 574, 580, 609, 615, 656, 696, 812, 820, 840, 861, 870, 984, 1015, 1148, 1160, 1189, 1218, 1230, 1392, 1435, 1624, 1640, 1680, 1722, 1740, 1968, 2030, 2296, 2320, 2378, 2436, 2460, 2870, 3045, 3248, 3280, 3444, 3480, 3567, 4060, 4305, 4592, 4756, 4872, 4920, 5740, 5945, 6090, 6888, 6960, 7134, 8120, 8323, 8610, 9512, 9744, 9840, 11480, 11890, 12180, 13776, 14268, 16240, 16646, 17220, 17835, 19024, 22960, 23780, 24360, 24969, 28536, 33292, 34440, 35670, 41615, 47560, 48720, 49938, 57072, 66584, 68880, 71340, 83230, 95120, 99876, 124845, 133168, 142680, 166460, 199752, 249690, 285360, 332920, 399504, 499380, 665840, 998760, 1997520]

約数ペア:

[(1, 1997520), (2, 998760), (3, 665840), (4, 499380), (5, 399504), (6, 332920), (7, 285360), (8, 249690), (10, 199752), (12, 166460), (14, 142680), (15, 133168), (16, 124845), (20, 99876), (21, 95120), (24, 83230), (28, 71340), (29, 68880), (30, 66584), (35, 57072), (40, 49938), (41, 48720), (42, 47560), (48, 41615), (56, 35670), (58, 34440), (60, 33292), (70, 28536), (80, 24969), (82, 24360), (84, 23780), (87, 22960), (105, 19024), (112, 17835), (116, 17220), (120, 16646), (123, 16240), (140, 14268), (145, 13776), (164, 12180), (168, 11890), (174, 11480), (203, 9840), (205, 9744), (210, 9512), (232, 8610), (240, 8323), (246, 8120), (280, 7134), (287, 6960), (290, 6888), (328, 6090), (336, 5945), (348, 5740), (406, 4920), (410, 4872), (420, 4756), (435, 4592), (464, 4305), (492, 4060), (560, 3567), (574, 3480), (580, 3444), (609, 3280), (615, 3248), (656, 3045), (696, 2870), (812, 2460), (820, 2436), (840, 2378), (861, 2320), (870, 2296), (984, 2030), (1015, 1968), (1148, 1740), (1160, 1722), (1189, 1680), (1218, 1640), (1230, 1624), (1392, 1435)]