388210215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{66191}}^1$

素因数の和:66239

約数の個数: 32

約数和(自身を含む): 686278656

約数和(自身を除く): 298068441

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 5865, 66191, 198573, 330955, 992865, 1125247, 1522393, 3375741, 4567179, 5626235, 7611965, 16878705, 22835895, 25880681, 77642043, 129403405, 388210215]

約数ペア:

[(1, 388210215), (3, 129403405), (5, 77642043), (15, 25880681), (17, 22835895), (23, 16878705), (51, 7611965), (69, 5626235), (85, 4567179), (115, 3375741), (255, 1522393), (345, 1125247), (391, 992865), (1173, 330955), (1955, 198573), (5865, 66191)]