81647696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2269}}^1$

素因数の和:2463

約数の個数: 40

約数和(自身を含む): 171421320

約数和(自身を除く): 89773624

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 346, 692, 1384, 2249, 2269, 2768, 4498, 4538, 8996, 9076, 17992, 18152, 29497, 35984, 36304, 58994, 117988, 235976, 392537, 471952, 785074, 1570148, 3140296, 5102981, 6280592, 10205962, 20411924, 40823848, 81647696]

約数ペア:

[(1, 81647696), (2, 40823848), (4, 20411924), (8, 10205962), (13, 6280592), (16, 5102981), (26, 3140296), (52, 1570148), (104, 785074), (173, 471952), (208, 392537), (346, 235976), (692, 117988), (1384, 58994), (2249, 36304), (2269, 35984), (2768, 29497), (4498, 18152), (4538, 17992), (8996, 9076)]