642725356

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 1487216640

約数和(自身を除く): 844491284

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 79, 91, 98, 103, 124, 158, 182, 196, 206, 217, 316, 364, 403, 412, 434, 553, 637, 721, 806, 868, 1027, 1106, 1274, 1339, 1442, 1519, 1612, 2054, 2212, 2449, 2548, 2678, 2821, 2884, 3038, 3193, 3871, 4108, 4898, 5047, 5356, 5642, 6076, 6386, 7189, 7742, 8137, 9373, 9796, 10094, 11284, 12772, 14378, 15484, 16274, 17143, 18746, 19747, 20188, 22351, 28756, 31837, 32548, 34286, 37492, 39494, 41509, 44702, 50323, 56959, 63674, 65611, 68572, 78988, 83018, 89404, 100646, 105781, 113918, 120001, 127348, 131222, 156457, 166036, 201292, 211562, 222859, 227836, 240002, 252247, 262444, 290563, 312914, 398713, 423124, 445718, 480004, 504494, 581126, 625828, 740467, 797426, 891436, 1008988, 1162252, 1480934, 1560013, 1594852, 1765729, 2033941, 2961868, 3120026, 3279211, 3531458, 4067882, 5183269, 6240052, 6558422, 7062916, 8135764, 10366538, 12360103, 13116844, 20733076, 22954477, 24720206, 45908954, 49440412, 91817908, 160681339, 321362678, 642725356]

約数ペア:

[(1, 642725356), (2, 321362678), (4, 160681339), (7, 91817908), (13, 49440412), (14, 45908954), (26, 24720206), (28, 22954477), (31, 20733076), (49, 13116844), (52, 12360103), (62, 10366538), (79, 8135764), (91, 7062916), (98, 6558422), (103, 6240052), (124, 5183269), (158, 4067882), (182, 3531458), (196, 3279211), (206, 3120026), (217, 2961868), (316, 2033941), (364, 1765729), (403, 1594852), (412, 1560013), (434, 1480934), (553, 1162252), (637, 1008988), (721, 891436), (806, 797426), (868, 740467), (1027, 625828), (1106, 581126), (1274, 504494), (1339, 480004), (1442, 445718), (1519, 423124), (1612, 398713), (2054, 312914), (2212, 290563), (2449, 262444), (2548, 252247), (2678, 240002), (2821, 227836), (2884, 222859), (3038, 211562), (3193, 201292), (3871, 166036), (4108, 156457), (4898, 131222), (5047, 127348), (5356, 120001), (5642, 113918), (6076, 105781), (6386, 100646), (7189, 89404), (7742, 83018), (8137, 78988), (9373, 68572), (9796, 65611), (10094, 63674), (11284, 56959), (12772, 50323), (14378, 44702), (15484, 41509), (16274, 39494), (17143, 37492), (18746, 34286), (19747, 32548), (20188, 31837), (22351, 28756)]