209789160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249749}}^1$

素因数の和:249770

約数の個数: 64

約数和(自身を含む): 719280000

約数和(自身を除く): 509490840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 249749, 499498, 749247, 998996, 1248745, 1498494, 1748243, 1997992, 2497490, 2996988, 3496486, 3746235, 4994980, 5244729, 5993976, 6992972, 7492470, 8741215, 9989960, 10489458, 13985944, 14984940, 17482430, 20978916, 26223645, 29969880, 34964860, 41957832, 52447290, 69929720, 104894580, 209789160]

約数ペア:

[(1, 209789160), (2, 104894580), (3, 69929720), (4, 52447290), (5, 41957832), (6, 34964860), (7, 29969880), (8, 26223645), (10, 20978916), (12, 17482430), (14, 14984940), (15, 13985944), (20, 10489458), (21, 9989960), (24, 8741215), (28, 7492470), (30, 6992972), (35, 5993976), (40, 5244729), (42, 4994980), (56, 3746235), (60, 3496486), (70, 2996988), (84, 2497490), (105, 1997992), (120, 1748243), (140, 1498494), (168, 1248745), (210, 998996), (280, 749247), (420, 499498), (840, 249749)]