209216260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{86453}}^1$

素因数の和:86484

約数の個数: 36

約数和(自身を含む): 482932044

約数和(自身を除く): 273715784

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 86453, 172906, 345812, 432265, 864530, 950983, 1729060, 1901966, 3803932, 4754915, 9509830, 10460813, 19019660, 20921626, 41843252, 52304065, 104608130, 209216260]

約数ペア:

[(1, 209216260), (2, 104608130), (4, 52304065), (5, 41843252), (10, 20921626), (11, 19019660), (20, 10460813), (22, 9509830), (44, 4754915), (55, 3803932), (110, 1901966), (121, 1729060), (220, 950983), (242, 864530), (484, 432265), (605, 345812), (1210, 172906), (2420, 86453)]