398438828932

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{1427}}^1\times {\mathrm{983149}}^1$

素因数の和:984651

約数の個数: 24

約数和(自身を含む): 707584852800

約数和(自身を除く): 309146023868

約数列:

[1, 2, 4, 71, 142, 284, 1427, 2854, 5708, 101317, 202634, 405268, 983149, 1966298, 3932596, 69803579, 139607158, 279214316, 1402953623, 2805907246, 5611814492, 99609707233, 199219414466, 398438828932]

約数ペア:

[(1, 398438828932), (2, 199219414466), (4, 99609707233), (71, 5611814492), (142, 2805907246), (284, 1402953623), (1427, 279214316), (2854, 139607158), (5708, 69803579), (101317, 3932596), (202634, 1966298), (405268, 983149)]