391936720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:369

約数の個数: 160

約数和(自身を含む): 1090215936

約数和(自身を除く): 698279216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 107, 112, 124, 140, 155, 211, 214, 217, 248, 280, 310, 422, 428, 434, 496, 535, 560, 620, 749, 844, 856, 868, 1055, 1070, 1085, 1240, 1477, 1498, 1688, 1712, 1736, 2110, 2140, 2170, 2480, 2954, 2996, 3317, 3376, 3472, 3745, 4220, 4280, 4340, 5908, 5992, 6541, 6634, 7385, 7490, 8440, 8560, 8680, 11816, 11984, 13082, 13268, 14770, 14980, 16585, 16880, 17360, 22577, 23219, 23632, 26164, 26536, 29540, 29960, 32705, 33170, 45154, 45787, 46438, 52328, 53072, 59080, 59920, 65410, 66340, 90308, 91574, 92876, 104656, 112885, 116095, 118160, 130820, 132680, 158039, 180616, 183148, 185752, 225770, 228935, 232190, 261640, 265360, 316078, 361232, 366296, 371504, 451540, 457870, 464380, 523280, 632156, 699887, 732592, 790195, 903080, 915740, 928760, 1264312, 1399774, 1580390, 1806160, 1831480, 1857520, 2528624, 2799548, 3160780, 3499435, 3662960, 4899209, 5599096, 6321560, 6998870, 9798418, 11198192, 12643120, 13997740, 19596836, 24496045, 27995480, 39193672, 48992090, 55990960, 78387344, 97984180, 195968360, 391936720]

約数ペア:

[(1, 391936720), (2, 195968360), (4, 97984180), (5, 78387344), (7, 55990960), (8, 48992090), (10, 39193672), (14, 27995480), (16, 24496045), (20, 19596836), (28, 13997740), (31, 12643120), (35, 11198192), (40, 9798418), (56, 6998870), (62, 6321560), (70, 5599096), (80, 4899209), (107, 3662960), (112, 3499435), (124, 3160780), (140, 2799548), (155, 2528624), (211, 1857520), (214, 1831480), (217, 1806160), (248, 1580390), (280, 1399774), (310, 1264312), (422, 928760), (428, 915740), (434, 903080), (496, 790195), (535, 732592), (560, 699887), (620, 632156), (749, 523280), (844, 464380), (856, 457870), (868, 451540), (1055, 371504), (1070, 366296), (1085, 361232), (1240, 316078), (1477, 265360), (1498, 261640), (1688, 232190), (1712, 228935), (1736, 225770), (2110, 185752), (2140, 183148), (2170, 180616), (2480, 158039), (2954, 132680), (2996, 130820), (3317, 118160), (3376, 116095), (3472, 112885), (3745, 104656), (4220, 92876), (4280, 91574), (4340, 90308), (5908, 66340), (5992, 65410), (6541, 59920), (6634, 59080), (7385, 53072), (7490, 52328), (8440, 46438), (8560, 45787), (8680, 45154), (11816, 33170), (11984, 32705), (13082, 29960), (13268, 29540), (14770, 26536), (14980, 26164), (16585, 23632), (16880, 23219), (17360, 22577)]