31013865

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 57822336

約数和(自身を除く): 26808471

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 71, 85, 153, 213, 255, 355, 571, 639, 765, 1065, 1207, 1713, 2855, 3195, 3621, 5139, 6035, 8565, 9707, 10863, 18105, 25695, 29121, 40541, 48535, 54315, 87363, 121623, 145605, 202705, 364869, 436815, 608115, 689197, 1824345, 2067591, 3445985, 6202773, 10337955, 31013865]

約数ペア:

[(1, 31013865), (3, 10337955), (5, 6202773), (9, 3445985), (15, 2067591), (17, 1824345), (45, 689197), (51, 608115), (71, 436815), (85, 364869), (153, 202705), (213, 145605), (255, 121623), (355, 87363), (571, 54315), (639, 48535), (765, 40541), (1065, 29121), (1207, 25695), (1713, 18105), (2855, 10863), (3195, 9707), (3621, 8565), (5139, 6035)]