1639220480

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:540

約数の個数: 144

約数和(自身を含む): 4101081600

約数和(自身を除く): 2461861120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 109, 124, 128, 155, 160, 218, 248, 256, 310, 320, 379, 436, 496, 545, 620, 640, 758, 872, 992, 1090, 1240, 1280, 1516, 1744, 1895, 1984, 2180, 2480, 3032, 3379, 3488, 3790, 3968, 4360, 4960, 6064, 6758, 6976, 7580, 7936, 8720, 9920, 11749, 12128, 13516, 13952, 15160, 16895, 17440, 19840, 23498, 24256, 27032, 27904, 30320, 33790, 34880, 39680, 41311, 46996, 48512, 54064, 58745, 60640, 67580, 69760, 82622, 93992, 97024, 108128, 117490, 121280, 135160, 139520, 165244, 187984, 206555, 216256, 234980, 242560, 270320, 330488, 375968, 413110, 432512, 469960, 485120, 540640, 660976, 751936, 826220, 865024, 939920, 1081280, 1280641, 1321952, 1503872, 1652440, 1879840, 2162560, 2561282, 2643904, 3007744, 3304880, 3759680, 4325120, 5122564, 5287808, 6403205, 6609760, 7519360, 10245128, 10575616, 12806410, 13219520, 15038720, 20490256, 25612820, 26439040, 40980512, 51225640, 52878080, 81961024, 102451280, 163922048, 204902560, 327844096, 409805120, 819610240, 1639220480]

約数ペア:

[(1, 1639220480), (2, 819610240), (4, 409805120), (5, 327844096), (8, 204902560), (10, 163922048), (16, 102451280), (20, 81961024), (31, 52878080), (32, 51225640), (40, 40980512), (62, 26439040), (64, 25612820), (80, 20490256), (109, 15038720), (124, 13219520), (128, 12806410), (155, 10575616), (160, 10245128), (218, 7519360), (248, 6609760), (256, 6403205), (310, 5287808), (320, 5122564), (379, 4325120), (436, 3759680), (496, 3304880), (545, 3007744), (620, 2643904), (640, 2561282), (758, 2162560), (872, 1879840), (992, 1652440), (1090, 1503872), (1240, 1321952), (1280, 1280641), (1516, 1081280), (1744, 939920), (1895, 865024), (1984, 826220), (2180, 751936), (2480, 660976), (3032, 540640), (3379, 485120), (3488, 469960), (3790, 432512), (3968, 413110), (4360, 375968), (4960, 330488), (6064, 270320), (6758, 242560), (6976, 234980), (7580, 216256), (7936, 206555), (8720, 187984), (9920, 165244), (11749, 139520), (12128, 135160), (13516, 121280), (13952, 117490), (15160, 108128), (16895, 97024), (17440, 93992), (19840, 82622), (23498, 69760), (24256, 67580), (27032, 60640), (27904, 58745), (30320, 54064), (33790, 48512), (34880, 46996), (39680, 41311)]