81359740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2297}}^1$

素因数の和:2347

約数の個数: 96

約数和(自身を含む): 222372864

約数和(自身を除く): 141013124

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 55, 70, 77, 92, 110, 115, 140, 154, 161, 220, 230, 253, 308, 322, 385, 460, 506, 644, 770, 805, 1012, 1265, 1540, 1610, 1771, 2297, 2530, 3220, 3542, 4594, 5060, 7084, 8855, 9188, 11485, 16079, 17710, 22970, 25267, 32158, 35420, 45940, 50534, 52831, 64316, 80395, 101068, 105662, 126335, 160790, 176869, 211324, 252670, 264155, 321580, 353738, 369817, 505340, 528310, 581141, 707476, 739634, 884345, 1056620, 1162282, 1479268, 1768690, 1849085, 2324564, 2905705, 3537380, 3698170, 4067987, 5811410, 7396340, 8135974, 11622820, 16271948, 20339935, 40679870, 81359740]

約数ペア:

[(1, 81359740), (2, 40679870), (4, 20339935), (5, 16271948), (7, 11622820), (10, 8135974), (11, 7396340), (14, 5811410), (20, 4067987), (22, 3698170), (23, 3537380), (28, 2905705), (35, 2324564), (44, 1849085), (46, 1768690), (55, 1479268), (70, 1162282), (77, 1056620), (92, 884345), (110, 739634), (115, 707476), (140, 581141), (154, 528310), (161, 505340), (220, 369817), (230, 353738), (253, 321580), (308, 264155), (322, 252670), (385, 211324), (460, 176869), (506, 160790), (644, 126335), (770, 105662), (805, 101068), (1012, 80395), (1265, 64316), (1540, 52831), (1610, 50534), (1771, 45940), (2297, 35420), (2530, 32158), (3220, 25267), (3542, 22970), (4594, 17710), (5060, 16079), (7084, 11485), (8855, 9188)]