2157440

素因数分解:

$2^7\times 5^1\times {\mathrm{3371}}^1$

素因数の和:3390

約数の個数: 32

約数和(自身を含む): 5159160

約数和(自身を除く): 3001720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 3371, 6742, 13484, 16855, 26968, 33710, 53936, 67420, 107872, 134840, 215744, 269680, 431488, 539360, 1078720, 2157440]

約数ペア:

[(1, 2157440), (2, 1078720), (4, 539360), (5, 431488), (8, 269680), (10, 215744), (16, 134840), (20, 107872), (32, 67420), (40, 53936), (64, 33710), (80, 26968), (128, 16855), (160, 13484), (320, 6742), (640, 3371)]