81268304

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5503}}^1$

素因数の和:5595

約数の個数: 40

約数和(自身を含む): 171988992

約数和(自身を除く): 90720688

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1846, 3692, 5503, 7384, 11006, 14768, 22012, 44024, 71539, 88048, 143078, 286156, 390713, 572312, 781426, 1144624, 1562852, 3125704, 5079269, 6251408, 10158538, 20317076, 40634152, 81268304]

約数ペア:

[(1, 81268304), (2, 40634152), (4, 20317076), (8, 10158538), (13, 6251408), (16, 5079269), (26, 3125704), (52, 1562852), (71, 1144624), (104, 781426), (142, 572312), (208, 390713), (284, 286156), (568, 143078), (923, 88048), (1136, 71539), (1846, 44024), (3692, 22012), (5503, 14768), (7384, 11006)]