207919790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{51593}}^1$

素因数の和:51644

約数の個数: 32

約数和(自身を含む): 416054016

約数和(自身を除く): 208134226

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 51593, 103186, 257965, 515930, 670709, 1341418, 1599383, 3198766, 3353545, 6707090, 7996915, 15993830, 20791979, 41583958, 103959895, 207919790]

約数ペア:

[(1, 207919790), (2, 103959895), (5, 41583958), (10, 20791979), (13, 15993830), (26, 7996915), (31, 6707090), (62, 3353545), (65, 3198766), (130, 1599383), (155, 1341418), (310, 670709), (403, 515930), (806, 257965), (2015, 103186), (4030, 51593)]