256143390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{275423}}^1$

素因数の和:275464

約数の個数: 32

約数和(自身を含む): 634576896

約数和(自身を除く): 378433506

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 275423, 550846, 826269, 1377115, 1652538, 2754230, 4131345, 8262690, 8538113, 17076226, 25614339, 42690565, 51228678, 85381130, 128071695, 256143390]

約数ペア:

[(1, 256143390), (2, 128071695), (3, 85381130), (5, 51228678), (6, 42690565), (10, 25614339), (15, 17076226), (30, 8538113), (31, 8262690), (62, 4131345), (93, 2754230), (155, 1652538), (186, 1377115), (310, 826269), (465, 550846), (930, 275423)]