255983120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{443}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 618388992

約数和(自身を除く): 362405872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 233, 248, 310, 443, 466, 496, 620, 886, 932, 1165, 1240, 1772, 1864, 2215, 2330, 2480, 3544, 3728, 4430, 4660, 7088, 7223, 8860, 9320, 13733, 14446, 17720, 18640, 27466, 28892, 35440, 36115, 54932, 57784, 68665, 72230, 103219, 109864, 115568, 137330, 144460, 206438, 219728, 274660, 288920, 412876, 516095, 549320, 577840, 825752, 1032190, 1098640, 1651504, 2064380, 3199789, 4128760, 6399578, 8257520, 12799156, 15998945, 25598312, 31997890, 51196624, 63995780, 127991560, 255983120]

約数ペア:

[(1, 255983120), (2, 127991560), (4, 63995780), (5, 51196624), (8, 31997890), (10, 25598312), (16, 15998945), (20, 12799156), (31, 8257520), (40, 6399578), (62, 4128760), (80, 3199789), (124, 2064380), (155, 1651504), (233, 1098640), (248, 1032190), (310, 825752), (443, 577840), (466, 549320), (496, 516095), (620, 412876), (886, 288920), (932, 274660), (1165, 219728), (1240, 206438), (1772, 144460), (1864, 137330), (2215, 115568), (2330, 109864), (2480, 103219), (3544, 72230), (3728, 68665), (4430, 57784), (4660, 54932), (7088, 36115), (7223, 35440), (8860, 28892), (9320, 27466), (13733, 18640), (14446, 17720)]