77778590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{2711}}^1$

素因数の和:2888

約数の個数: 32

約数和(自身を含む): 148400640

約数和(自身を除く): 70622050

約数列:

[1, 2, 5, 10, 19, 38, 95, 151, 190, 302, 755, 1510, 2711, 2869, 5422, 5738, 13555, 14345, 27110, 28690, 51509, 103018, 257545, 409361, 515090, 818722, 2046805, 4093610, 7777859, 15555718, 38889295, 77778590]

約数ペア:

[(1, 77778590), (2, 38889295), (5, 15555718), (10, 7777859), (19, 4093610), (38, 2046805), (95, 818722), (151, 515090), (190, 409361), (302, 257545), (755, 103018), (1510, 51509), (2711, 28690), (2869, 27110), (5422, 14345), (5738, 13555)]