78974860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2131}}^1$

素因数の和:2266

約数の個数: 48

約数和(自身を含む): 177297120

約数和(自身を除く): 98322260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2131, 2180, 3706, 4262, 7412, 8524, 9265, 10655, 18530, 21310, 36227, 37060, 42620, 72454, 144908, 181135, 232279, 362270, 464558, 724540, 929116, 1161395, 2322790, 3948743, 4645580, 7897486, 15794972, 19743715, 39487430, 78974860]

約数ペア:

[(1, 78974860), (2, 39487430), (4, 19743715), (5, 15794972), (10, 7897486), (17, 4645580), (20, 3948743), (34, 2322790), (68, 1161395), (85, 929116), (109, 724540), (170, 464558), (218, 362270), (340, 232279), (436, 181135), (545, 144908), (1090, 72454), (1853, 42620), (2131, 37060), (2180, 36227), (3706, 21310), (4262, 18530), (7412, 10655), (8524, 9265)]