18377120

素因数分解:

$2^5\times 5^1\times {\mathrm{331}}^1\times {\mathrm{347}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 43672608

約数和(自身を除く): 25295488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 331, 347, 662, 694, 1324, 1388, 1655, 1735, 2648, 2776, 3310, 3470, 5296, 5552, 6620, 6940, 10592, 11104, 13240, 13880, 26480, 27760, 52960, 55520, 114857, 229714, 459428, 574285, 918856, 1148570, 1837712, 2297140, 3675424, 4594280, 9188560, 18377120]

約数ペア:

[(1, 18377120), (2, 9188560), (4, 4594280), (5, 3675424), (8, 2297140), (10, 1837712), (16, 1148570), (20, 918856), (32, 574285), (40, 459428), (80, 229714), (160, 114857), (331, 55520), (347, 52960), (662, 27760), (694, 26480), (1324, 13880), (1388, 13240), (1655, 11104), (1735, 10592), (2648, 6940), (2776, 6620), (3310, 5552), (3470, 5296)]