19156940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4583}}^1$

素因数の和:4622

約数の個数: 48

約数和(自身を含む): 46206720

約数和(自身を除く): 27049780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4583, 9166, 18332, 22915, 45830, 50413, 87077, 91660, 100826, 174154, 201652, 252065, 348308, 435385, 504130, 870770, 957847, 1008260, 1741540, 1915694, 3831388, 4789235, 9578470, 19156940]

約数ペア:

[(1, 19156940), (2, 9578470), (4, 4789235), (5, 3831388), (10, 1915694), (11, 1741540), (19, 1008260), (20, 957847), (22, 870770), (38, 504130), (44, 435385), (55, 348308), (76, 252065), (95, 201652), (110, 174154), (190, 100826), (209, 91660), (220, 87077), (380, 50413), (418, 45830), (836, 22915), (1045, 18332), (2090, 9166), (4180, 4583)]