2197840

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{331}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 5187168

約数和(自身を除く): 2989328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 331, 332, 415, 662, 664, 830, 1324, 1328, 1655, 1660, 2648, 3310, 3320, 5296, 6620, 6640, 13240, 26480, 27473, 54946, 109892, 137365, 219784, 274730, 439568, 549460, 1098920, 2197840]

約数ペア:

[(1, 2197840), (2, 1098920), (4, 549460), (5, 439568), (8, 274730), (10, 219784), (16, 137365), (20, 109892), (40, 54946), (80, 27473), (83, 26480), (166, 13240), (331, 6640), (332, 6620), (415, 5296), (662, 3320), (664, 3310), (830, 2648), (1324, 1660), (1328, 1655)]