405315040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{194863}}^1$

素因数の和:194891

約数の個数: 48

約数和(自身を含む): 1031220288

約数和(自身を除く): 625905248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 194863, 389726, 779452, 974315, 1558904, 1948630, 2533219, 3117808, 3897260, 5066438, 6235616, 7794520, 10132876, 12666095, 15589040, 20265752, 25332190, 31178080, 40531504, 50664380, 81063008, 101328760, 202657520, 405315040]

約数ペア:

[(1, 405315040), (2, 202657520), (4, 101328760), (5, 81063008), (8, 50664380), (10, 40531504), (13, 31178080), (16, 25332190), (20, 20265752), (26, 15589040), (32, 12666095), (40, 10132876), (52, 7794520), (65, 6235616), (80, 5066438), (104, 3897260), (130, 3117808), (160, 2533219), (208, 1948630), (260, 1558904), (416, 974315), (520, 779452), (1040, 389726), (2080, 194863)]