257311440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{357377}}^1$

素因数の和:357396

約数の個数: 60

約数和(自身を含む): 864140004

約数和(自身を除く): 606828564

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 357377, 714754, 1072131, 1429508, 1786885, 2144262, 2859016, 3216393, 3573770, 4288524, 5360655, 5718032, 6432786, 7147540, 8577048, 10721310, 12865572, 14295080, 16081965, 17154096, 21442620, 25731144, 28590160, 32163930, 42885240, 51462288, 64327860, 85770480, 128655720, 257311440]

約数ペア:

[(1, 257311440), (2, 128655720), (3, 85770480), (4, 64327860), (5, 51462288), (6, 42885240), (8, 32163930), (9, 28590160), (10, 25731144), (12, 21442620), (15, 17154096), (16, 16081965), (18, 14295080), (20, 12865572), (24, 10721310), (30, 8577048), (36, 7147540), (40, 6432786), (45, 5718032), (48, 5360655), (60, 4288524), (72, 3573770), (80, 3216393), (90, 2859016), (120, 2144262), (144, 1786885), (180, 1429508), (240, 1072131), (360, 714754), (720, 357377)]