281396880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{390829}}^1$

素因数の和:390848

約数の個数: 60

約数和(自身を含む): 945026940

約数和(自身を除く): 663630060

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, 390829, 781658, 1172487, 1563316, 1954145, 2344974, 3126632, 3517461, 3908290, 4689948, 5862435, 6253264, 7034922, 7816580, 9379896, 11724870, 14069844, 15633160, 17587305, 18759792, 23449740, 28139688, 31266320, 35174610, 46899480, 56279376, 70349220, 93798960, 140698440, 281396880]

約数ペア:

[(1, 281396880), (2, 140698440), (3, 93798960), (4, 70349220), (5, 56279376), (6, 46899480), (8, 35174610), (9, 31266320), (10, 28139688), (12, 23449740), (15, 18759792), (16, 17587305), (18, 15633160), (20, 14069844), (24, 11724870), (30, 9379896), (36, 7816580), (40, 7034922), (45, 6253264), (48, 5862435), (60, 4689948), (72, 3908290), (80, 3517461), (90, 3126632), (120, 2344974), (144, 1954145), (180, 1563316), (240, 1172487), (360, 781658), (720, 390829)]