402513920

素因数分解:

$2^{13}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:379

約数の個数: 112

約数和(自身を含む): 1000280448

約数和(自身を除く): 597766528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 317, 320, 496, 512, 620, 634, 640, 992, 1024, 1240, 1268, 1280, 1585, 1984, 2048, 2480, 2536, 2560, 3170, 3968, 4096, 4960, 5072, 5120, 6340, 7936, 8192, 9827, 9920, 10144, 10240, 12680, 15872, 19654, 19840, 20288, 20480, 25360, 31744, 39308, 39680, 40576, 40960, 49135, 50720, 63488, 78616, 79360, 81152, 98270, 101440, 126976, 157232, 158720, 162304, 196540, 202880, 253952, 314464, 317440, 324608, 393080, 405760, 628928, 634880, 649216, 786160, 811520, 1257856, 1269760, 1298432, 1572320, 1623040, 2515712, 2596864, 3144640, 3246080, 5031424, 6289280, 6492160, 10062848, 12578560, 12984320, 20125696, 25157120, 40251392, 50314240, 80502784, 100628480, 201256960, 402513920]

約数ペア:

[(1, 402513920), (2, 201256960), (4, 100628480), (5, 80502784), (8, 50314240), (10, 40251392), (16, 25157120), (20, 20125696), (31, 12984320), (32, 12578560), (40, 10062848), (62, 6492160), (64, 6289280), (80, 5031424), (124, 3246080), (128, 3144640), (155, 2596864), (160, 2515712), (248, 1623040), (256, 1572320), (310, 1298432), (317, 1269760), (320, 1257856), (496, 811520), (512, 786160), (620, 649216), (634, 634880), (640, 628928), (992, 405760), (1024, 393080), (1240, 324608), (1268, 317440), (1280, 314464), (1585, 253952), (1984, 202880), (2048, 196540), (2480, 162304), (2536, 158720), (2560, 157232), (3170, 126976), (3968, 101440), (4096, 98270), (4960, 81152), (5072, 79360), (5120, 78616), (6340, 63488), (7936, 50720), (8192, 49135), (9827, 40960), (9920, 40576), (10144, 39680), (10240, 39308), (12680, 31744), (15872, 25360), (19654, 20480), (19840, 20288)]