128032020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1277}}^1$

素因数の和:1849

約数の個数: 72

約数和(自身を含む): 389365704

約数和(自身を除く): 261333684

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 557, 1114, 1277, 1671, 2228, 2554, 2785, 3342, 3831, 5013, 5108, 5570, 6385, 6684, 7662, 8355, 10026, 11140, 11493, 12770, 15324, 16710, 19155, 20052, 22986, 25065, 25540, 33420, 38310, 45972, 50130, 57465, 76620, 100260, 114930, 229860, 711289, 1422578, 2133867, 2845156, 3556445, 4267734, 6401601, 7112890, 8535468, 10669335, 12803202, 14225780, 21338670, 25606404, 32008005, 42677340, 64016010, 128032020]

約数ペア:

[(1, 128032020), (2, 64016010), (3, 42677340), (4, 32008005), (5, 25606404), (6, 21338670), (9, 14225780), (10, 12803202), (12, 10669335), (15, 8535468), (18, 7112890), (20, 6401601), (30, 4267734), (36, 3556445), (45, 2845156), (60, 2133867), (90, 1422578), (180, 711289), (557, 229860), (1114, 114930), (1277, 100260), (1671, 76620), (2228, 57465), (2554, 50130), (2785, 45972), (3342, 38310), (3831, 33420), (5013, 25540), (5108, 25065), (5570, 22986), (6385, 20052), (6684, 19155), (7662, 16710), (8355, 15324), (10026, 12770), (11140, 11493)]