12381820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2447}}^1$

素因数の和:2490

約数の個数: 48

約数和(自身を含む): 29611008

約数和(自身を除く): 17229188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2447, 2530, 4894, 5060, 9788, 12235, 24470, 26917, 48940, 53834, 56281, 107668, 112562, 134585, 225124, 269170, 281405, 538340, 562810, 619091, 1125620, 1238182, 2476364, 3095455, 6190910, 12381820]

約数ペア:

[(1, 12381820), (2, 6190910), (4, 3095455), (5, 2476364), (10, 1238182), (11, 1125620), (20, 619091), (22, 562810), (23, 538340), (44, 281405), (46, 269170), (55, 225124), (92, 134585), (110, 112562), (115, 107668), (220, 56281), (230, 53834), (253, 48940), (460, 26917), (506, 24470), (1012, 12235), (1265, 9788), (2447, 5060), (2530, 4894)]