399305988

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{5387}}^1$

素因数の和:5497

約数の個数: 72

約数和(自身を含む): 1059065280

約数和(自身を除く): 659759292

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 71, 87, 116, 142, 174, 213, 261, 284, 348, 426, 522, 639, 852, 1044, 1278, 2059, 2556, 4118, 5387, 6177, 8236, 10774, 12354, 16161, 18531, 21548, 24708, 32322, 37062, 48483, 64644, 74124, 96966, 156223, 193932, 312446, 382477, 468669, 624892, 764954, 937338, 1147431, 1406007, 1529908, 1874676, 2294862, 2812014, 3442293, 4589724, 5624028, 6884586, 11091833, 13769172, 22183666, 33275499, 44367332, 66550998, 99826497, 133101996, 199652994, 399305988]

約数ペア:

[(1, 399305988), (2, 199652994), (3, 133101996), (4, 99826497), (6, 66550998), (9, 44367332), (12, 33275499), (18, 22183666), (29, 13769172), (36, 11091833), (58, 6884586), (71, 5624028), (87, 4589724), (116, 3442293), (142, 2812014), (174, 2294862), (213, 1874676), (261, 1529908), (284, 1406007), (348, 1147431), (426, 937338), (522, 764954), (639, 624892), (852, 468669), (1044, 382477), (1278, 312446), (2059, 193932), (2556, 156223), (4118, 96966), (5387, 74124), (6177, 64644), (8236, 48483), (10774, 37062), (12354, 32322), (16161, 24708), (18531, 21548)]