256190926720

素因数分解:

$2^7\times 5^1\times {\mathrm{72689}}^1\times {\mathrm{5507}}^1$

素因数の和:78215

約数の個数: 64

約数和(自身を含む): 612576075600

約数和(自身を除く): 356385148880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 5507, 11014, 22028, 27535, 44056, 55070, 72689, 88112, 110140, 145378, 176224, 220280, 290756, 352448, 363445, 440560, 581512, 704896, 726890, 881120, 1163024, 1453780, 1762240, 2326048, 2907560, 3524480, 4652096, 5815120, 9304192, 11630240, 23260480, 46520960, 400298323, 800596646, 1601193292, 2001491615, 3202386584, 4002983230, 6404773168, 8005966460, 12809546336, 16011932920, 25619092672, 32023865840, 51238185344, 64047731680, 128095463360, 256190926720]

約数ペア:

[(1, 256190926720), (2, 128095463360), (4, 64047731680), (5, 51238185344), (8, 32023865840), (10, 25619092672), (16, 16011932920), (20, 12809546336), (32, 8005966460), (40, 6404773168), (64, 4002983230), (80, 3202386584), (128, 2001491615), (160, 1601193292), (320, 800596646), (640, 400298323), (5507, 46520960), (11014, 23260480), (22028, 11630240), (27535, 9304192), (44056, 5815120), (55070, 4652096), (72689, 3524480), (88112, 2907560), (110140, 2326048), (145378, 1762240), (176224, 1453780), (220280, 1163024), (290756, 881120), (352448, 726890), (363445, 704896), (440560, 581512)]