641456452

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{8681}}^1$

素因数の和:8741

約数の個数: 72

約数和(自身を含む): 1454929560

約数和(自身を除く): 813473108

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 49, 52, 58, 91, 98, 116, 182, 196, 203, 364, 377, 406, 637, 754, 812, 1274, 1421, 1508, 2548, 2639, 2842, 5278, 5684, 8681, 10556, 17362, 18473, 34724, 36946, 60767, 73892, 112853, 121534, 225706, 243068, 251749, 425369, 451412, 503498, 789971, 850738, 1006996, 1579942, 1701476, 1762243, 3159884, 3272737, 3524486, 5529797, 6545474, 7048972, 11059594, 12335701, 13090948, 22119188, 22909159, 24671402, 45818318, 49342804, 91636636, 160364113, 320728226, 641456452]

約数ペア:

[(1, 641456452), (2, 320728226), (4, 160364113), (7, 91636636), (13, 49342804), (14, 45818318), (26, 24671402), (28, 22909159), (29, 22119188), (49, 13090948), (52, 12335701), (58, 11059594), (91, 7048972), (98, 6545474), (116, 5529797), (182, 3524486), (196, 3272737), (203, 3159884), (364, 1762243), (377, 1701476), (406, 1579942), (637, 1006996), (754, 850738), (812, 789971), (1274, 503498), (1421, 451412), (1508, 425369), (2548, 251749), (2639, 243068), (2842, 225706), (5278, 121534), (5684, 112853), (8681, 73892), (10556, 60767), (17362, 36946), (18473, 34724)]