257809188

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1163}}^1$

素因数の和:1226

約数の個数: 144

約数和(自身を含む): 780252480

約数和(自身を除く): 522443292

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 29, 39, 42, 49, 52, 58, 78, 84, 87, 91, 98, 116, 147, 156, 174, 182, 196, 203, 273, 294, 348, 364, 377, 406, 546, 588, 609, 637, 754, 812, 1092, 1131, 1163, 1218, 1274, 1421, 1508, 1911, 2262, 2326, 2436, 2548, 2639, 2842, 3489, 3822, 4263, 4524, 4652, 5278, 5684, 6978, 7644, 7917, 8141, 8526, 10556, 13956, 15119, 15834, 16282, 17052, 18473, 24423, 30238, 31668, 32564, 33727, 36946, 45357, 48846, 55419, 56987, 60476, 67454, 73892, 90714, 97692, 101181, 105833, 110838, 113974, 134908, 170961, 181428, 202362, 211666, 221676, 227948, 236089, 317499, 341922, 404724, 423332, 438451, 472178, 634998, 683844, 708267, 740831, 876902, 944356, 1269996, 1315353, 1416534, 1481662, 1652623, 1753804, 2222493, 2630706, 2833068, 2963324, 3069157, 3305246, 4444986, 4957869, 5261412, 6138314, 6610492, 8889972, 9207471, 9915738, 12276628, 18414942, 19831476, 21484099, 36829884, 42968198, 64452297, 85936396, 128904594, 257809188]

約数ペア:

[(1, 257809188), (2, 128904594), (3, 85936396), (4, 64452297), (6, 42968198), (7, 36829884), (12, 21484099), (13, 19831476), (14, 18414942), (21, 12276628), (26, 9915738), (28, 9207471), (29, 8889972), (39, 6610492), (42, 6138314), (49, 5261412), (52, 4957869), (58, 4444986), (78, 3305246), (84, 3069157), (87, 2963324), (91, 2833068), (98, 2630706), (116, 2222493), (147, 1753804), (156, 1652623), (174, 1481662), (182, 1416534), (196, 1315353), (203, 1269996), (273, 944356), (294, 876902), (348, 740831), (364, 708267), (377, 683844), (406, 634998), (546, 472178), (588, 438451), (609, 423332), (637, 404724), (754, 341922), (812, 317499), (1092, 236089), (1131, 227948), (1163, 221676), (1218, 211666), (1274, 202362), (1421, 181428), (1508, 170961), (1911, 134908), (2262, 113974), (2326, 110838), (2436, 105833), (2548, 101181), (2639, 97692), (2842, 90714), (3489, 73892), (3822, 67454), (4263, 60476), (4524, 56987), (4652, 55419), (5278, 48846), (5684, 45357), (6978, 36946), (7644, 33727), (7917, 32564), (8141, 31668), (8526, 30238), (10556, 24423), (13956, 18473), (15119, 17052), (15834, 16282)]