16397440

素因数分解:

$2^7\times 5^1\times {\mathrm{25621}}^1$

素因数の和:25640

約数の個数: 32

約数和(自身を含む): 39201660

約数和(自身を除く): 22804220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 25621, 51242, 102484, 128105, 204968, 256210, 409936, 512420, 819872, 1024840, 1639744, 2049680, 3279488, 4099360, 8198720, 16397440]

約数ペア:

[(1, 16397440), (2, 8198720), (4, 4099360), (5, 3279488), (8, 2049680), (10, 1639744), (16, 1024840), (20, 819872), (32, 512420), (40, 409936), (64, 256210), (80, 204968), (128, 128105), (160, 102484), (320, 51242), (640, 25621)]