128591640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{357199}}^1$

素因数の和:357216

約数の個数: 48

約数和(自身を含む): 417924000

約数和(自身を除く): 289332360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 357199, 714398, 1071597, 1428796, 1785995, 2143194, 2857592, 3214791, 3571990, 4286388, 5357985, 6429582, 7143980, 8572776, 10715970, 12859164, 14287960, 16073955, 21431940, 25718328, 32147910, 42863880, 64295820, 128591640]

約数ペア:

[(1, 128591640), (2, 64295820), (3, 42863880), (4, 32147910), (5, 25718328), (6, 21431940), (8, 16073955), (9, 14287960), (10, 12859164), (12, 10715970), (15, 8572776), (18, 7143980), (20, 6429582), (24, 5357985), (30, 4286388), (36, 3571990), (40, 3214791), (45, 2857592), (60, 2143194), (72, 1785995), (90, 1428796), (120, 1071597), (180, 714398), (360, 357199)]