139949020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{991}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 307980288

約数和(自身を除く): 168031268

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 307, 460, 614, 991, 1228, 1535, 1982, 3070, 3964, 4955, 6140, 7061, 9910, 14122, 19820, 22793, 28244, 35305, 45586, 70610, 91172, 113965, 141220, 227930, 304237, 455860, 608474, 1216948, 1521185, 3042370, 6084740, 6997451, 13994902, 27989804, 34987255, 69974510, 139949020]

約数ペア:

[(1, 139949020), (2, 69974510), (4, 34987255), (5, 27989804), (10, 13994902), (20, 6997451), (23, 6084740), (46, 3042370), (92, 1521185), (115, 1216948), (230, 608474), (307, 455860), (460, 304237), (614, 227930), (991, 141220), (1228, 113965), (1535, 91172), (1982, 70610), (3070, 45586), (3964, 35305), (4955, 28244), (6140, 22793), (7061, 19820), (9910, 14122)]