216655280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:682

約数の個数: 80

約数和(自身を含む): 523776000

約数和(自身を除く): 307120720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 199, 248, 310, 398, 439, 496, 620, 796, 878, 995, 1240, 1592, 1756, 1990, 2195, 2480, 3184, 3512, 3980, 4390, 6169, 7024, 7960, 8780, 12338, 13609, 15920, 17560, 24676, 27218, 30845, 35120, 49352, 54436, 61690, 68045, 87361, 98704, 108872, 123380, 136090, 174722, 217744, 246760, 272180, 349444, 436805, 493520, 544360, 698888, 873610, 1088720, 1397776, 1747220, 2708191, 3494440, 5416382, 6988880, 10832764, 13540955, 21665528, 27081910, 43331056, 54163820, 108327640, 216655280]

約数ペア:

[(1, 216655280), (2, 108327640), (4, 54163820), (5, 43331056), (8, 27081910), (10, 21665528), (16, 13540955), (20, 10832764), (31, 6988880), (40, 5416382), (62, 3494440), (80, 2708191), (124, 1747220), (155, 1397776), (199, 1088720), (248, 873610), (310, 698888), (398, 544360), (439, 493520), (496, 436805), (620, 349444), (796, 272180), (878, 246760), (995, 217744), (1240, 174722), (1592, 136090), (1756, 123380), (1990, 108872), (2195, 98704), (2480, 87361), (3184, 68045), (3512, 61690), (3980, 54436), (4390, 49352), (6169, 35120), (7024, 30845), (7960, 27218), (8780, 24676), (12338, 17560), (13609, 15920)]