19541720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1931}}^1$

素因数の和:1976

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 30535720

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, 1931, 2024, 2530, 3862, 5060, 7724, 9655, 10120, 15448, 19310, 21241, 38620, 42482, 44413, 77240, 84964, 88826, 106205, 169928, 177652, 212410, 222065, 355304, 424820, 444130, 488543, 849640, 888260, 977086, 1776520, 1954172, 2442715, 3908344, 4885430, 9770860, 19541720]

約数ペア:

[(1, 19541720), (2, 9770860), (4, 4885430), (5, 3908344), (8, 2442715), (10, 1954172), (11, 1776520), (20, 977086), (22, 888260), (23, 849640), (40, 488543), (44, 444130), (46, 424820), (55, 355304), (88, 222065), (92, 212410), (110, 177652), (115, 169928), (184, 106205), (220, 88826), (230, 84964), (253, 77240), (440, 44413), (460, 42482), (506, 38620), (920, 21241), (1012, 19310), (1265, 15448), (1931, 10120), (2024, 9655), (2530, 7724), (3862, 5060)]