178400940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{21391}}^1$

素因数の和:21542

約数の個数: 48

約数和(自身を含む): 503139840

約数和(自身を除く): 324738900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2780, 4170, 8340, 21391, 42782, 64173, 85564, 106955, 128346, 213910, 256692, 320865, 427820, 641730, 1283460, 2973349, 5946698, 8920047, 11893396, 14866745, 17840094, 29733490, 35680188, 44600235, 59466980, 89200470, 178400940]

約数ペア:

[(1, 178400940), (2, 89200470), (3, 59466980), (4, 44600235), (5, 35680188), (6, 29733490), (10, 17840094), (12, 14866745), (15, 11893396), (20, 8920047), (30, 5946698), (60, 2973349), (139, 1283460), (278, 641730), (417, 427820), (556, 320865), (695, 256692), (834, 213910), (1390, 128346), (1668, 106955), (2085, 85564), (2780, 64173), (4170, 42782), (8340, 21391)]