158718640

素因数分解:

$2^4\times 5^1\times {\mathrm{727}}^1\times {\mathrm{2729}}^1$

素因数の和:3469

約数の個数: 40

約数和(自身を含む): 369663840

約数和(自身を除く): 210945200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 727, 1454, 2729, 2908, 3635, 5458, 5816, 7270, 10916, 11632, 13645, 14540, 21832, 27290, 29080, 43664, 54580, 58160, 109160, 218320, 1983983, 3967966, 7935932, 9919915, 15871864, 19839830, 31743728, 39679660, 79359320, 158718640]

約数ペア:

[(1, 158718640), (2, 79359320), (4, 39679660), (5, 31743728), (8, 19839830), (10, 15871864), (16, 9919915), (20, 7935932), (40, 3967966), (80, 1983983), (727, 218320), (1454, 109160), (2729, 58160), (2908, 54580), (3635, 43664), (5458, 29080), (5816, 27290), (7270, 21832), (10916, 14540), (11632, 13645)]