20829270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:226

約数の個数: 128

約数和(自身を含む): 63700992

約数和(自身を除く): 42871722

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 71, 77, 105, 110, 127, 142, 154, 165, 210, 213, 231, 254, 330, 355, 381, 385, 426, 462, 497, 635, 710, 762, 770, 781, 889, 994, 1065, 1155, 1270, 1397, 1491, 1562, 1778, 1905, 2130, 2310, 2343, 2485, 2667, 2794, 2982, 3810, 3905, 4191, 4445, 4686, 4970, 5334, 5467, 6985, 7455, 7810, 8382, 8890, 9017, 9779, 10934, 11715, 13335, 13970, 14910, 16401, 18034, 19558, 20955, 23430, 26670, 27051, 27335, 29337, 32802, 41910, 45085, 48895, 54102, 54670, 58674, 63119, 82005, 90170, 97790, 99187, 126238, 135255, 146685, 164010, 189357, 198374, 270510, 293370, 297561, 315595, 378714, 495935, 595122, 631190, 694309, 946785, 991870, 1388618, 1487805, 1893570, 2082927, 2975610, 3471545, 4165854, 6943090, 10414635, 20829270]

約数ペア:

[(1, 20829270), (2, 10414635), (3, 6943090), (5, 4165854), (6, 3471545), (7, 2975610), (10, 2082927), (11, 1893570), (14, 1487805), (15, 1388618), (21, 991870), (22, 946785), (30, 694309), (33, 631190), (35, 595122), (42, 495935), (55, 378714), (66, 315595), (70, 297561), (71, 293370), (77, 270510), (105, 198374), (110, 189357), (127, 164010), (142, 146685), (154, 135255), (165, 126238), (210, 99187), (213, 97790), (231, 90170), (254, 82005), (330, 63119), (355, 58674), (381, 54670), (385, 54102), (426, 48895), (462, 45085), (497, 41910), (635, 32802), (710, 29337), (762, 27335), (770, 27051), (781, 26670), (889, 23430), (994, 20955), (1065, 19558), (1155, 18034), (1270, 16401), (1397, 14910), (1491, 13970), (1562, 13335), (1778, 11715), (1905, 10934), (2130, 9779), (2310, 9017), (2343, 8890), (2485, 8382), (2667, 7810), (2794, 7455), (2982, 6985), (3810, 5467), (3905, 5334), (4191, 4970), (4445, 4686)]