393387520

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4957}}^1$

素因数の和:5011

約数の個数: 80

約数和(自身を含む): 973830528

約数和(自身を除く): 580443008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4957, 4960, 7936, 9914, 9920, 15872, 19828, 19840, 24785, 39656, 39680, 49570, 79312, 79360, 99140, 153667, 158624, 198280, 307334, 317248, 396560, 614668, 634496, 768335, 793120, 1229336, 1268992, 1536670, 1586240, 2458672, 2537984, 3073340, 3172480, 4917344, 6146680, 6344960, 9834688, 12293360, 12689920, 19669376, 24586720, 39338752, 49173440, 78677504, 98346880, 196693760, 393387520]

約数ペア:

[(1, 393387520), (2, 196693760), (4, 98346880), (5, 78677504), (8, 49173440), (10, 39338752), (16, 24586720), (20, 19669376), (31, 12689920), (32, 12293360), (40, 9834688), (62, 6344960), (64, 6146680), (80, 4917344), (124, 3172480), (128, 3073340), (155, 2537984), (160, 2458672), (248, 1586240), (256, 1536670), (310, 1268992), (320, 1229336), (496, 793120), (512, 768335), (620, 634496), (640, 614668), (992, 396560), (1240, 317248), (1280, 307334), (1984, 198280), (2480, 158624), (2560, 153667), (3968, 99140), (4957, 79360), (4960, 79312), (7936, 49570), (9914, 39680), (9920, 39656), (15872, 24785), (19828, 19840)]