78969255

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{397}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 128952000

約数和(自身を除く): 49982745

約数列:

[1, 3, 5, 15, 89, 149, 267, 397, 445, 447, 745, 1191, 1335, 1985, 2235, 5955, 13261, 35333, 39783, 59153, 66305, 105999, 176665, 177459, 198915, 295765, 529995, 887295, 5264617, 15793851, 26323085, 78969255]

約数ペア:

[(1, 78969255), (3, 26323085), (5, 15793851), (15, 5264617), (89, 887295), (149, 529995), (267, 295765), (397, 198915), (445, 177459), (447, 176665), (745, 105999), (1191, 66305), (1335, 59153), (1985, 39783), (2235, 35333), (5955, 13261)]