19755960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:861

約数の個数: 128

約数和(自身を含む): 70156800

約数和(自身を除く): 50400840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 84, 87, 105, 116, 120, 140, 145, 168, 174, 203, 210, 232, 280, 290, 348, 406, 420, 435, 580, 609, 696, 811, 812, 840, 870, 1015, 1160, 1218, 1622, 1624, 1740, 2030, 2433, 2436, 3045, 3244, 3480, 4055, 4060, 4866, 4872, 5677, 6090, 6488, 8110, 8120, 9732, 11354, 12165, 12180, 16220, 17031, 19464, 22708, 23519, 24330, 24360, 28385, 32440, 34062, 45416, 47038, 48660, 56770, 68124, 70557, 85155, 94076, 97320, 113540, 117595, 136248, 141114, 164633, 170310, 188152, 227080, 235190, 282228, 329266, 340620, 352785, 470380, 493899, 564456, 658532, 681240, 705570, 823165, 940760, 987798, 1317064, 1411140, 1646330, 1975596, 2469495, 2822280, 3292660, 3951192, 4938990, 6585320, 9877980, 19755960]

約数ペア:

[(1, 19755960), (2, 9877980), (3, 6585320), (4, 4938990), (5, 3951192), (6, 3292660), (7, 2822280), (8, 2469495), (10, 1975596), (12, 1646330), (14, 1411140), (15, 1317064), (20, 987798), (21, 940760), (24, 823165), (28, 705570), (29, 681240), (30, 658532), (35, 564456), (40, 493899), (42, 470380), (56, 352785), (58, 340620), (60, 329266), (70, 282228), (84, 235190), (87, 227080), (105, 188152), (116, 170310), (120, 164633), (140, 141114), (145, 136248), (168, 117595), (174, 113540), (203, 97320), (210, 94076), (232, 85155), (280, 70557), (290, 68124), (348, 56770), (406, 48660), (420, 47038), (435, 45416), (580, 34062), (609, 32440), (696, 28385), (811, 24360), (812, 24330), (840, 23519), (870, 22708), (1015, 19464), (1160, 17031), (1218, 16220), (1622, 12180), (1624, 12165), (1740, 11354), (2030, 9732), (2433, 8120), (2436, 8110), (3045, 6488), (3244, 6090), (3480, 5677), (4055, 4872), (4060, 4866)]