27890710

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{457}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 53421120

約数和(自身を除く): 25530410

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 359, 457, 718, 914, 1795, 2285, 3590, 4570, 6103, 7769, 12206, 15538, 30515, 38845, 61030, 77690, 164063, 328126, 820315, 1640630, 2789071, 5578142, 13945355, 27890710]

約数ペア:

[(1, 27890710), (2, 13945355), (5, 5578142), (10, 2789071), (17, 1640630), (34, 820315), (85, 328126), (170, 164063), (359, 77690), (457, 61030), (718, 38845), (914, 30515), (1795, 15538), (2285, 12206), (3590, 7769), (4570, 6103)]