81172480

素因数分解:

$2^{11}\times 5^1\times {\mathrm{7927}}^1$

素因数の和:7954

約数の個数: 48

約数和(自身を含む): 194790960

約数和(自身を除く): 113618480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 7927, 10240, 15854, 31708, 39635, 63416, 79270, 126832, 158540, 253664, 317080, 507328, 634160, 1014656, 1268320, 2029312, 2536640, 4058624, 5073280, 8117248, 10146560, 16234496, 20293120, 40586240, 81172480]

約数ペア:

[(1, 81172480), (2, 40586240), (4, 20293120), (5, 16234496), (8, 10146560), (10, 8117248), (16, 5073280), (20, 4058624), (32, 2536640), (40, 2029312), (64, 1268320), (80, 1014656), (128, 634160), (160, 507328), (256, 317080), (320, 253664), (512, 158540), (640, 126832), (1024, 79270), (1280, 63416), (2048, 39635), (2560, 31708), (5120, 15854), (7927, 10240)]