1294016720

素因数分解:

$2^4\times 5^1\times {\mathrm{863}}^1\times {\mathrm{18743}}^1$

素因数の和:19619

約数の個数: 40

約数和(自身を含む): 3012235776

約数和(自身を除く): 1718219056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 863, 1726, 3452, 4315, 6904, 8630, 13808, 17260, 18743, 34520, 37486, 69040, 74972, 93715, 149944, 187430, 299888, 374860, 749720, 1499440, 16175209, 32350418, 64700836, 80876045, 129401672, 161752090, 258803344, 323504180, 647008360, 1294016720]

約数ペア:

[(1, 1294016720), (2, 647008360), (4, 323504180), (5, 258803344), (8, 161752090), (10, 129401672), (16, 80876045), (20, 64700836), (40, 32350418), (80, 16175209), (863, 1499440), (1726, 749720), (3452, 374860), (4315, 299888), (6904, 187430), (8630, 149944), (13808, 93715), (17260, 74972), (18743, 69040), (34520, 37486)]