2019477640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:791

約数の個数: 128

約数和(自身を含む): 4914432000

約数和(自身を除く): 2894954360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 89, 116, 124, 145, 155, 178, 232, 248, 290, 310, 356, 445, 580, 620, 631, 712, 890, 899, 1160, 1240, 1262, 1780, 1798, 2524, 2581, 2759, 3155, 3560, 3596, 4495, 5048, 5162, 5518, 6310, 7192, 8990, 10324, 11036, 12620, 12905, 13795, 17980, 18299, 19561, 20648, 22072, 25240, 25810, 27590, 35960, 36598, 39122, 51620, 55180, 56159, 73196, 78244, 80011, 91495, 97805, 103240, 110360, 112318, 146392, 156488, 160022, 182990, 195610, 224636, 280795, 320044, 365980, 391220, 400055, 449272, 561590, 567269, 640088, 731960, 782440, 800110, 1123180, 1134538, 1600220, 1628611, 1740929, 2246360, 2269076, 2836345, 3200440, 3257222, 3481858, 4538152, 5672690, 6514444, 6963716, 8143055, 8704645, 11345380, 13028888, 13927432, 16286110, 17409290, 22690760, 32572220, 34818580, 50486941, 65144440, 69637160, 100973882, 201947764, 252434705, 403895528, 504869410, 1009738820, 2019477640]

約数ペア:

[(1, 2019477640), (2, 1009738820), (4, 504869410), (5, 403895528), (8, 252434705), (10, 201947764), (20, 100973882), (29, 69637160), (31, 65144440), (40, 50486941), (58, 34818580), (62, 32572220), (89, 22690760), (116, 17409290), (124, 16286110), (145, 13927432), (155, 13028888), (178, 11345380), (232, 8704645), (248, 8143055), (290, 6963716), (310, 6514444), (356, 5672690), (445, 4538152), (580, 3481858), (620, 3257222), (631, 3200440), (712, 2836345), (890, 2269076), (899, 2246360), (1160, 1740929), (1240, 1628611), (1262, 1600220), (1780, 1134538), (1798, 1123180), (2524, 800110), (2581, 782440), (2759, 731960), (3155, 640088), (3560, 567269), (3596, 561590), (4495, 449272), (5048, 400055), (5162, 391220), (5518, 365980), (6310, 320044), (7192, 280795), (8990, 224636), (10324, 195610), (11036, 182990), (12620, 160022), (12905, 156488), (13795, 146392), (17980, 112318), (18299, 110360), (19561, 103240), (20648, 97805), (22072, 91495), (25240, 80011), (25810, 78244), (27590, 73196), (35960, 56159), (36598, 55180), (39122, 51620)]