7920540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:651

約数の個数: 72

約数和(自身を含む): 24373440

約数和(自身を除く): 16452900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 557, 711, 790, 948, 1114, 1185, 1422, 1580, 1671, 2228, 2370, 2785, 2844, 3342, 3555, 4740, 5013, 5570, 6684, 7110, 8355, 10026, 11140, 14220, 16710, 20052, 25065, 33420, 44003, 50130, 88006, 100260, 132009, 176012, 220015, 264018, 396027, 440030, 528036, 660045, 792054, 880060, 1320090, 1584108, 1980135, 2640180, 3960270, 7920540]

約数ペア:

[(1, 7920540), (2, 3960270), (3, 2640180), (4, 1980135), (5, 1584108), (6, 1320090), (9, 880060), (10, 792054), (12, 660045), (15, 528036), (18, 440030), (20, 396027), (30, 264018), (36, 220015), (45, 176012), (60, 132009), (79, 100260), (90, 88006), (158, 50130), (180, 44003), (237, 33420), (316, 25065), (395, 20052), (474, 16710), (557, 14220), (711, 11140), (790, 10026), (948, 8355), (1114, 7110), (1185, 6684), (1422, 5570), (1580, 5013), (1671, 4740), (2228, 3555), (2370, 3342), (2785, 2844)]