400454792

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{33349}}^1$

素因数の和:33453

約数の個数: 32

約数和(自身を含む): 800400000

約数和(自身を除く): 399945208

約数列:

[1, 2, 4, 8, 19, 38, 76, 79, 152, 158, 316, 632, 1501, 3002, 6004, 12008, 33349, 66698, 133396, 266792, 633631, 1267262, 2534524, 2634571, 5069048, 5269142, 10538284, 21076568, 50056849, 100113698, 200227396, 400454792]

約数ペア:

[(1, 400454792), (2, 200227396), (4, 100113698), (8, 50056849), (19, 21076568), (38, 10538284), (76, 5269142), (79, 5069048), (152, 2634571), (158, 2534524), (316, 1267262), (632, 633631), (1501, 266792), (3002, 133396), (6004, 66698), (12008, 33349)]