81251248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12601}}^1$

素因数の和:12653

約数の個数: 40

約数和(自身を含む): 175016576

約数和(自身を除く): 93765328

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 12601, 25202, 50404, 100808, 163813, 201616, 327626, 390631, 655252, 781262, 1310504, 1562524, 2621008, 3125048, 5078203, 6250096, 10156406, 20312812, 40625624, 81251248]

約数ペア:

[(1, 81251248), (2, 40625624), (4, 20312812), (8, 10156406), (13, 6250096), (16, 5078203), (26, 3125048), (31, 2621008), (52, 1562524), (62, 1310504), (104, 781262), (124, 655252), (208, 390631), (248, 327626), (403, 201616), (496, 163813), (806, 100808), (1612, 50404), (3224, 25202), (6448, 12601)]