206820720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{287251}}^1$

素因数の和:287270

約数の個数: 60

約数和(自身を含む): 694575336

約数和(自身を除く): 487754616

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, 287251, 574502, 861753, 1149004, 1436255, 1723506, 2298008, 2585259, 2872510, 3447012, 4308765, 4596016, 5170518, 5745020, 6894024, 8617530, 10341036, 11490040, 12926295, 13788048, 17235060, 20682072, 22980080, 25852590, 34470120, 41364144, 51705180, 68940240, 103410360, 206820720]

約数ペア:

[(1, 206820720), (2, 103410360), (3, 68940240), (4, 51705180), (5, 41364144), (6, 34470120), (8, 25852590), (9, 22980080), (10, 20682072), (12, 17235060), (15, 13788048), (16, 12926295), (18, 11490040), (20, 10341036), (24, 8617530), (30, 6894024), (36, 5745020), (40, 5170518), (45, 4596016), (48, 4308765), (60, 3447012), (72, 2872510), (80, 2585259), (90, 2298008), (120, 1723506), (144, 1436255), (180, 1149004), (240, 861753), (360, 574502), (720, 287251)]