280900980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{809}}^1$

素因数の和:1470

約数の個数: 96

約数和(自身を含む): 876355200

約数和(自身を除く): 595454220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 643, 809, 1286, 1618, 1929, 2427, 2572, 3215, 3236, 3858, 4045, 4854, 5787, 6430, 7281, 7716, 8090, 9645, 9708, 11574, 12135, 12860, 14562, 16180, 17361, 19290, 21843, 23148, 24270, 28935, 29124, 34722, 36405, 38580, 43686, 48540, 57870, 69444, 72810, 86805, 87372, 109215, 115740, 145620, 173610, 218430, 347220, 436860, 520187, 1040374, 1560561, 2080748, 2600935, 3121122, 4681683, 5201870, 6242244, 7802805, 9363366, 10403740, 14045049, 15605610, 18726732, 23408415, 28090098, 31211220, 46816830, 56180196, 70225245, 93633660, 140450490, 280900980]

約数ペア:

[(1, 280900980), (2, 140450490), (3, 93633660), (4, 70225245), (5, 56180196), (6, 46816830), (9, 31211220), (10, 28090098), (12, 23408415), (15, 18726732), (18, 15605610), (20, 14045049), (27, 10403740), (30, 9363366), (36, 7802805), (45, 6242244), (54, 5201870), (60, 4681683), (90, 3121122), (108, 2600935), (135, 2080748), (180, 1560561), (270, 1040374), (540, 520187), (643, 436860), (809, 347220), (1286, 218430), (1618, 173610), (1929, 145620), (2427, 115740), (2572, 109215), (3215, 87372), (3236, 86805), (3858, 72810), (4045, 69444), (4854, 57870), (5787, 48540), (6430, 43686), (7281, 38580), (7716, 36405), (8090, 34722), (9645, 29124), (9708, 28935), (11574, 24270), (12135, 23148), (12860, 21843), (14562, 19290), (16180, 17361)]