12960180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{809}}^1$

素因数の和:913

約数の個数: 72

約数和(自身を含む): 39803400

約数和(自身を除く): 26843220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 809, 890, 1068, 1335, 1602, 1618, 1780, 2427, 2670, 3204, 3236, 4005, 4045, 4854, 5340, 7281, 8010, 8090, 9708, 12135, 14562, 16020, 16180, 24270, 29124, 36405, 48540, 72001, 72810, 144002, 145620, 216003, 288004, 360005, 432006, 648009, 720010, 864012, 1080015, 1296018, 1440020, 2160030, 2592036, 3240045, 4320060, 6480090, 12960180]

約数ペア:

[(1, 12960180), (2, 6480090), (3, 4320060), (4, 3240045), (5, 2592036), (6, 2160030), (9, 1440020), (10, 1296018), (12, 1080015), (15, 864012), (18, 720010), (20, 648009), (30, 432006), (36, 360005), (45, 288004), (60, 216003), (89, 145620), (90, 144002), (178, 72810), (180, 72001), (267, 48540), (356, 36405), (445, 29124), (534, 24270), (801, 16180), (809, 16020), (890, 14562), (1068, 12135), (1335, 9708), (1602, 8090), (1618, 8010), (1780, 7281), (2427, 5340), (2670, 4854), (3204, 4045), (3236, 4005)]