128608020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{238163}}^1$

素因数の和:238181

約数の個数: 48

約数和(自身を含む): 400115520

約数和(自身を除く): 271507500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 238163, 476326, 714489, 952652, 1190815, 1428978, 2143467, 2381630, 2857956, 3572445, 4286934, 4763260, 6430401, 7144890, 8573868, 10717335, 12860802, 14289780, 21434670, 25721604, 32152005, 42869340, 64304010, 128608020]

約数ペア:

[(1, 128608020), (2, 64304010), (3, 42869340), (4, 32152005), (5, 25721604), (6, 21434670), (9, 14289780), (10, 12860802), (12, 10717335), (15, 8573868), (18, 7144890), (20, 6430401), (27, 4763260), (30, 4286934), (36, 3572445), (45, 2857956), (54, 2381630), (60, 2143467), (90, 1428978), (108, 1190815), (135, 952652), (180, 714489), (270, 476326), (540, 238163)]