81978390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70067}}^1$

素因数の和:70093

約数の個数: 48

約数和(自身を含む): 229542768

約数和(自身を除く): 147564378

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 70067, 140134, 210201, 350335, 420402, 630603, 700670, 910871, 1051005, 1261206, 1821742, 2102010, 2732613, 3153015, 4554355, 5465226, 6306030, 8197839, 9108710, 13663065, 16395678, 27326130, 40989195, 81978390]

約数ペア:

[(1, 81978390), (2, 40989195), (3, 27326130), (5, 16395678), (6, 13663065), (9, 9108710), (10, 8197839), (13, 6306030), (15, 5465226), (18, 4554355), (26, 3153015), (30, 2732613), (39, 2102010), (45, 1821742), (65, 1261206), (78, 1051005), (90, 910871), (117, 700670), (130, 630603), (195, 420402), (234, 350335), (390, 210201), (585, 140134), (1170, 70067)]