81431640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{226199}}^1$

素因数の和:226216

約数の個数: 48

約数和(自身を含む): 264654000

約数和(自身を除く): 183222360

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, 226199, 452398, 678597, 904796, 1130995, 1357194, 1809592, 2035791, 2261990, 2714388, 3392985, 4071582, 4523980, 5428776, 6785970, 8143164, 9047960, 10178955, 13571940, 16286328, 20357910, 27143880, 40715820, 81431640]

約数ペア:

[(1, 81431640), (2, 40715820), (3, 27143880), (4, 20357910), (5, 16286328), (6, 13571940), (8, 10178955), (9, 9047960), (10, 8143164), (12, 6785970), (15, 5428776), (18, 4523980), (20, 4071582), (24, 3392985), (30, 2714388), (36, 2261990), (40, 2035791), (45, 1809592), (60, 1357194), (72, 1130995), (90, 904796), (120, 678597), (180, 452398), (360, 226199)]