1388372920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137191}}^1$

素因数の和:137236

約数の個数: 64

約数和(自身を含む): 3556016640

約数和(自身を除く): 2167643720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 5060, 10120, 137191, 274382, 548764, 685955, 1097528, 1371910, 1509101, 2743820, 3018202, 3155393, 5487640, 6036404, 6310786, 7545505, 12072808, 12621572, 15091010, 15776965, 25243144, 30182020, 31553930, 34709323, 60364040, 63107860, 69418646, 126215720, 138837292, 173546615, 277674584, 347093230, 694186460, 1388372920]

約数ペア:

[(1, 1388372920), (2, 694186460), (4, 347093230), (5, 277674584), (8, 173546615), (10, 138837292), (11, 126215720), (20, 69418646), (22, 63107860), (23, 60364040), (40, 34709323), (44, 31553930), (46, 30182020), (55, 25243144), (88, 15776965), (92, 15091010), (110, 12621572), (115, 12072808), (184, 7545505), (220, 6310786), (230, 6036404), (253, 5487640), (440, 3155393), (460, 3018202), (506, 2743820), (920, 1509101), (1012, 1371910), (1265, 1097528), (2024, 685955), (2530, 548764), (5060, 274382), (10120, 137191)]