15456780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1997}}^1$

素因数の和:2055

約数の個数: 72

約数和(自身を含む): 47999952

約数和(自身を除く): 32543172

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, 1997, 2580, 3870, 3994, 5991, 7740, 7988, 9985, 11982, 17973, 19970, 23964, 29955, 35946, 39940, 59910, 71892, 85871, 89865, 119820, 171742, 179730, 257613, 343484, 359460, 429355, 515226, 772839, 858710, 1030452, 1288065, 1545678, 1717420, 2576130, 3091356, 3864195, 5152260, 7728390, 15456780]

約数ペア:

[(1, 15456780), (2, 7728390), (3, 5152260), (4, 3864195), (5, 3091356), (6, 2576130), (9, 1717420), (10, 1545678), (12, 1288065), (15, 1030452), (18, 858710), (20, 772839), (30, 515226), (36, 429355), (43, 359460), (45, 343484), (60, 257613), (86, 179730), (90, 171742), (129, 119820), (172, 89865), (180, 85871), (215, 71892), (258, 59910), (387, 39940), (430, 35946), (516, 29955), (645, 23964), (774, 19970), (860, 17973), (1290, 11982), (1548, 9985), (1935, 7988), (1997, 7740), (2580, 5991), (3870, 3994)]