212001680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^4\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 100

約数和(自身を含む): 545186460

約数和(自身を除く): 333184780

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 181, 220, 242, 362, 440, 484, 605, 724, 880, 905, 968, 1210, 1331, 1448, 1810, 1936, 1991, 2420, 2662, 2896, 3620, 3982, 4840, 5324, 6655, 7240, 7964, 9680, 9955, 10648, 13310, 14480, 14641, 15928, 19910, 21296, 21901, 26620, 29282, 31856, 39820, 43802, 53240, 58564, 73205, 79640, 87604, 106480, 109505, 117128, 146410, 159280, 175208, 219010, 234256, 240911, 292820, 350416, 438020, 481822, 585640, 876040, 963644, 1171280, 1204555, 1752080, 1927288, 2409110, 2650021, 3854576, 4818220, 5300042, 9636440, 10600084, 13250105, 19272880, 21200168, 26500210, 42400336, 53000420, 106000840, 212001680]

約数ペア:

[(1, 212001680), (2, 106000840), (4, 53000420), (5, 42400336), (8, 26500210), (10, 21200168), (11, 19272880), (16, 13250105), (20, 10600084), (22, 9636440), (40, 5300042), (44, 4818220), (55, 3854576), (80, 2650021), (88, 2409110), (110, 1927288), (121, 1752080), (176, 1204555), (181, 1171280), (220, 963644), (242, 876040), (362, 585640), (440, 481822), (484, 438020), (605, 350416), (724, 292820), (880, 240911), (905, 234256), (968, 219010), (1210, 175208), (1331, 159280), (1448, 146410), (1810, 117128), (1936, 109505), (1991, 106480), (2420, 87604), (2662, 79640), (2896, 73205), (3620, 58564), (3982, 53240), (4840, 43802), (5324, 39820), (6655, 31856), (7240, 29282), (7964, 26620), (9680, 21901), (9955, 21296), (10648, 19910), (13310, 15928), (14480, 14641)]