209121840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{290447}}^1$

素因数の和:290466

約数の個数: 60

約数和(自身を含む): 702303264

約数和(自身を除く): 493181424

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, 290447, 580894, 871341, 1161788, 1452235, 1742682, 2323576, 2614023, 2904470, 3485364, 4356705, 4647152, 5228046, 5808940, 6970728, 8713410, 10456092, 11617880, 13070115, 13941456, 17426820, 20912184, 23235760, 26140230, 34853640, 41824368, 52280460, 69707280, 104560920, 209121840]

約数ペア:

[(1, 209121840), (2, 104560920), (3, 69707280), (4, 52280460), (5, 41824368), (6, 34853640), (8, 26140230), (9, 23235760), (10, 20912184), (12, 17426820), (15, 13941456), (16, 13070115), (18, 11617880), (20, 10456092), (24, 8713410), (30, 6970728), (36, 5808940), (40, 5228046), (45, 4647152), (48, 4356705), (60, 3485364), (72, 2904470), (80, 2614023), (90, 2323576), (120, 1742682), (144, 1452235), (180, 1161788), (240, 871341), (360, 580894), (720, 290447)]