1288679920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:639

約数の個数: 160

約数和(自身を含む): 3415781376

約数和(自身を除く): 2127101456

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 97, 110, 124, 155, 176, 194, 220, 248, 310, 341, 388, 440, 485, 487, 496, 620, 682, 776, 880, 970, 974, 1067, 1240, 1364, 1552, 1705, 1940, 1948, 2134, 2435, 2480, 2728, 3007, 3410, 3880, 3896, 4268, 4870, 5335, 5357, 5456, 6014, 6820, 7760, 7792, 8536, 9740, 10670, 10714, 12028, 13640, 15035, 15097, 17072, 19480, 21340, 21428, 24056, 26785, 27280, 30070, 30194, 33077, 38960, 42680, 42856, 47239, 48112, 53570, 60140, 60388, 66154, 75485, 85360, 85712, 94478, 107140, 120280, 120776, 132308, 150970, 165385, 166067, 188956, 214280, 236195, 240560, 241552, 264616, 301940, 330770, 332134, 377912, 428560, 472390, 519629, 529232, 603880, 661540, 664268, 755824, 830335, 944780, 1039258, 1207760, 1323080, 1328536, 1464409, 1660670, 1889560, 2078516, 2598145, 2646160, 2657072, 2928818, 3321340, 3779120, 4157032, 5196290, 5857636, 6642680, 7322045, 8314064, 10392580, 11715272, 13285360, 14644090, 16108499, 20785160, 23430544, 29288180, 32216998, 41570320, 58576360, 64433996, 80542495, 117152720, 128867992, 161084990, 257735984, 322169980, 644339960, 1288679920]

約数ペア:

[(1, 1288679920), (2, 644339960), (4, 322169980), (5, 257735984), (8, 161084990), (10, 128867992), (11, 117152720), (16, 80542495), (20, 64433996), (22, 58576360), (31, 41570320), (40, 32216998), (44, 29288180), (55, 23430544), (62, 20785160), (80, 16108499), (88, 14644090), (97, 13285360), (110, 11715272), (124, 10392580), (155, 8314064), (176, 7322045), (194, 6642680), (220, 5857636), (248, 5196290), (310, 4157032), (341, 3779120), (388, 3321340), (440, 2928818), (485, 2657072), (487, 2646160), (496, 2598145), (620, 2078516), (682, 1889560), (776, 1660670), (880, 1464409), (970, 1328536), (974, 1323080), (1067, 1207760), (1240, 1039258), (1364, 944780), (1552, 830335), (1705, 755824), (1940, 664268), (1948, 661540), (2134, 603880), (2435, 529232), (2480, 519629), (2728, 472390), (3007, 428560), (3410, 377912), (3880, 332134), (3896, 330770), (4268, 301940), (4870, 264616), (5335, 241552), (5357, 240560), (5456, 236195), (6014, 214280), (6820, 188956), (7760, 166067), (7792, 165385), (8536, 150970), (9740, 132308), (10670, 120776), (10714, 120280), (12028, 107140), (13640, 94478), (15035, 85712), (15097, 85360), (17072, 75485), (19480, 66154), (21340, 60388), (21428, 60140), (24056, 53570), (26785, 48112), (27280, 47239), (30070, 42856), (30194, 42680), (33077, 38960)]