209467310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{51977}}^1$

素因数の和:52028

約数の個数: 32

約数和(自身を含む): 419150592

約数和(自身を除く): 209683282

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 51977, 103954, 259885, 519770, 675701, 1351402, 1611287, 3222574, 3378505, 6757010, 8056435, 16112870, 20946731, 41893462, 104733655, 209467310]

約数ペア:

[(1, 209467310), (2, 104733655), (5, 41893462), (10, 20946731), (13, 16112870), (26, 8056435), (31, 6757010), (62, 3378505), (65, 3222574), (130, 1611287), (155, 1351402), (310, 675701), (403, 519770), (806, 259885), (2015, 103954), (4030, 51977)]