31306720

素因数分解:

$2^5\times 5^1\times {\mathrm{389}}^1\times {\mathrm{503}}^1$

素因数の和:907

約数の個数: 48

約数和(自身を含む): 74299680

約数和(自身を除く): 42992960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 389, 503, 778, 1006, 1556, 1945, 2012, 2515, 3112, 3890, 4024, 5030, 6224, 7780, 8048, 10060, 12448, 15560, 16096, 20120, 31120, 40240, 62240, 80480, 195667, 391334, 782668, 978335, 1565336, 1956670, 3130672, 3913340, 6261344, 7826680, 15653360, 31306720]

約数ペア:

[(1, 31306720), (2, 15653360), (4, 7826680), (5, 6261344), (8, 3913340), (10, 3130672), (16, 1956670), (20, 1565336), (32, 978335), (40, 782668), (80, 391334), (160, 195667), (389, 80480), (503, 62240), (778, 40240), (1006, 31120), (1556, 20120), (1945, 16096), (2012, 15560), (2515, 12448), (3112, 10060), (3890, 8048), (4024, 7780), (5030, 6224)]