668636472

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{409}}^1$

素因数の和:725

約数の個数: 128

約数和(自身を含む): 1974297600

約数和(自身を除く): 1305661128

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 56, 74, 84, 111, 148, 168, 222, 259, 263, 296, 409, 444, 518, 526, 777, 789, 818, 888, 1036, 1052, 1227, 1554, 1578, 1636, 1841, 2072, 2104, 2454, 2863, 3108, 3156, 3272, 3682, 4908, 5523, 5726, 6216, 6312, 7364, 8589, 9731, 9816, 11046, 11452, 14728, 15133, 17178, 19462, 22092, 22904, 29193, 30266, 34356, 38924, 44184, 45399, 58386, 60532, 68117, 68712, 77848, 90798, 105931, 107567, 116772, 121064, 136234, 181596, 204351, 211862, 215134, 233544, 272468, 317793, 322701, 363192, 408702, 423724, 430268, 544936, 635586, 645402, 752969, 817404, 847448, 860536, 1271172, 1290804, 1505938, 1634808, 2258907, 2542344, 2581608, 3011876, 3979979, 4517814, 6023752, 7959958, 9035628, 11939937, 15919916, 18071256, 23879874, 27859853, 31839832, 47759748, 55719706, 83579559, 95519496, 111439412, 167159118, 222878824, 334318236, 668636472]

約数ペア:

[(1, 668636472), (2, 334318236), (3, 222878824), (4, 167159118), (6, 111439412), (7, 95519496), (8, 83579559), (12, 55719706), (14, 47759748), (21, 31839832), (24, 27859853), (28, 23879874), (37, 18071256), (42, 15919916), (56, 11939937), (74, 9035628), (84, 7959958), (111, 6023752), (148, 4517814), (168, 3979979), (222, 3011876), (259, 2581608), (263, 2542344), (296, 2258907), (409, 1634808), (444, 1505938), (518, 1290804), (526, 1271172), (777, 860536), (789, 847448), (818, 817404), (888, 752969), (1036, 645402), (1052, 635586), (1227, 544936), (1554, 430268), (1578, 423724), (1636, 408702), (1841, 363192), (2072, 322701), (2104, 317793), (2454, 272468), (2863, 233544), (3108, 215134), (3156, 211862), (3272, 204351), (3682, 181596), (4908, 136234), (5523, 121064), (5726, 116772), (6216, 107567), (6312, 105931), (7364, 90798), (8589, 77848), (9731, 68712), (9816, 68117), (11046, 60532), (11452, 58386), (14728, 45399), (15133, 44184), (17178, 38924), (19462, 34356), (22092, 30266), (22904, 29193)]