398820864

素因数分解:

$2^9\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19973}}^1$

素因数の和:20007

約数の個数: 80

約数和(自身を含む): 1144270512

約数和(自身を除く): 745449648

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 384, 416, 512, 624, 768, 832, 1248, 1536, 1664, 2496, 3328, 4992, 6656, 9984, 19968, 19973, 39946, 59919, 79892, 119838, 159784, 239676, 259649, 319568, 479352, 519298, 639136, 778947, 958704, 1038596, 1278272, 1557894, 1917408, 2077192, 2556544, 3115788, 3834816, 4154384, 5113088, 6231576, 7669632, 8308768, 10226176, 12463152, 15339264, 16617536, 24926304, 30678528, 33235072, 49852608, 66470144, 99705216, 132940288, 199410432, 398820864]

約数ペア:

[(1, 398820864), (2, 199410432), (3, 132940288), (4, 99705216), (6, 66470144), (8, 49852608), (12, 33235072), (13, 30678528), (16, 24926304), (24, 16617536), (26, 15339264), (32, 12463152), (39, 10226176), (48, 8308768), (52, 7669632), (64, 6231576), (78, 5113088), (96, 4154384), (104, 3834816), (128, 3115788), (156, 2556544), (192, 2077192), (208, 1917408), (256, 1557894), (312, 1278272), (384, 1038596), (416, 958704), (512, 778947), (624, 639136), (768, 519298), (832, 479352), (1248, 319568), (1536, 259649), (1664, 239676), (2496, 159784), (3328, 119838), (4992, 79892), (6656, 59919), (9984, 39946), (19968, 19973)]