748721920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{18869}}^1$

素因数の和:18921

約数の個数: 72

約数和(自身を含む): 1851373440

約数和(自身を除く): 1102651520

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, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 18869, 19840, 37738, 39680, 75476, 94345, 150952, 188690, 301904, 377380, 584939, 603808, 754760, 1169878, 1207616, 1509520, 2339756, 2415232, 2924695, 3019040, 4679512, 4830464, 5849390, 6038080, 9359024, 11698780, 12076160, 18718048, 23397560, 24152320, 37436096, 46795120, 74872192, 93590240, 149744384, 187180480, 374360960, 748721920]

約数ペア:

[(1, 748721920), (2, 374360960), (4, 187180480), (5, 149744384), (8, 93590240), (10, 74872192), (16, 46795120), (20, 37436096), (31, 24152320), (32, 23397560), (40, 18718048), (62, 12076160), (64, 11698780), (80, 9359024), (124, 6038080), (128, 5849390), (155, 4830464), (160, 4679512), (248, 3019040), (256, 2924695), (310, 2415232), (320, 2339756), (496, 1509520), (620, 1207616), (640, 1169878), (992, 754760), (1240, 603808), (1280, 584939), (1984, 377380), (2480, 301904), (3968, 188690), (4960, 150952), (7936, 94345), (9920, 75476), (18869, 39680), (19840, 37738)]