256323720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{12347}}^1$

素因数の和:12534

約数の個数: 64

約数和(自身を含む): 773478720

約数和(自身を除く): 517155000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 1038, 1384, 1730, 2076, 2595, 3460, 4152, 5190, 6920, 10380, 12347, 20760, 24694, 37041, 49388, 61735, 74082, 98776, 123470, 148164, 185205, 246940, 296328, 370410, 493880, 740820, 1481640, 2136031, 4272062, 6408093, 8544124, 10680155, 12816186, 17088248, 21360310, 25632372, 32040465, 42720620, 51264744, 64080930, 85441240, 128161860, 256323720]

約数ペア:

[(1, 256323720), (2, 128161860), (3, 85441240), (4, 64080930), (5, 51264744), (6, 42720620), (8, 32040465), (10, 25632372), (12, 21360310), (15, 17088248), (20, 12816186), (24, 10680155), (30, 8544124), (40, 6408093), (60, 4272062), (120, 2136031), (173, 1481640), (346, 740820), (519, 493880), (692, 370410), (865, 296328), (1038, 246940), (1384, 185205), (1730, 148164), (2076, 123470), (2595, 98776), (3460, 74082), (4152, 61735), (5190, 49388), (6920, 37041), (10380, 24694), (12347, 20760)]