68831720

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{6397}}^1$

素因数の和:6677

約数の個数: 32

約数和(自身を含む): 155471400

約数和(自身を除く): 86639680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 5380, 6397, 10760, 12794, 25588, 31985, 51176, 63970, 127940, 255880, 1720793, 3441586, 6883172, 8603965, 13766344, 17207930, 34415860, 68831720]

約数ペア:

[(1, 68831720), (2, 34415860), (4, 17207930), (5, 13766344), (8, 8603965), (10, 6883172), (20, 3441586), (40, 1720793), (269, 255880), (538, 127940), (1076, 63970), (1345, 51176), (2152, 31985), (2690, 25588), (5380, 12794), (6397, 10760)]