156905120

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{3907}}^1$

素因数の和:4173

約数の個数: 48

約数和(自身を含む): 372260448

約数和(自身を除く): 215355328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 502, 1004, 1255, 2008, 2510, 3907, 4016, 5020, 7814, 8032, 10040, 15628, 19535, 20080, 31256, 39070, 40160, 62512, 78140, 125024, 156280, 312560, 625120, 980657, 1961314, 3922628, 4903285, 7845256, 9806570, 15690512, 19613140, 31381024, 39226280, 78452560, 156905120]

約数ペア:

[(1, 156905120), (2, 78452560), (4, 39226280), (5, 31381024), (8, 19613140), (10, 15690512), (16, 9806570), (20, 7845256), (32, 4903285), (40, 3922628), (80, 1961314), (160, 980657), (251, 625120), (502, 312560), (1004, 156280), (1255, 125024), (2008, 78140), (2510, 62512), (3907, 40160), (4016, 39070), (5020, 31256), (7814, 20080), (8032, 19535), (10040, 15628)]