209219940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{27031}}^1$

素因数の和:27089

約数の個数: 72

約数和(自身を含む): 649416768

約数和(自身を除く): 440196828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 27031, 54062, 81093, 108124, 135155, 162186, 243279, 270310, 324372, 405465, 486558, 540620, 810930, 973116, 1162333, 1216395, 1621860, 2324666, 2432790, 3486999, 4649332, 4865580, 5811665, 6973998, 10460997, 11623330, 13947996, 17434995, 20921994, 23246660, 34869990, 41843988, 52304985, 69739980, 104609970, 209219940]

約数ペア:

[(1, 209219940), (2, 104609970), (3, 69739980), (4, 52304985), (5, 41843988), (6, 34869990), (9, 23246660), (10, 20921994), (12, 17434995), (15, 13947996), (18, 11623330), (20, 10460997), (30, 6973998), (36, 5811665), (43, 4865580), (45, 4649332), (60, 3486999), (86, 2432790), (90, 2324666), (129, 1621860), (172, 1216395), (180, 1162333), (215, 973116), (258, 810930), (387, 540620), (430, 486558), (516, 405465), (645, 324372), (774, 270310), (860, 243279), (1290, 162186), (1548, 135155), (1935, 108124), (2580, 81093), (3870, 54062), (7740, 27031)]