85857290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1\times {\mathrm{661}}^1$

素因数の和:1118

約数の個数: 32

約数和(自身を含む): 160151040

約数和(自身を除く): 74293750

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 419, 661, 838, 1322, 2095, 3305, 4190, 6610, 12989, 20491, 25978, 40982, 64945, 102455, 129890, 204910, 276959, 553918, 1384795, 2769590, 8585729, 17171458, 42928645, 85857290]

約数ペア:

[(1, 85857290), (2, 42928645), (5, 17171458), (10, 8585729), (31, 2769590), (62, 1384795), (155, 553918), (310, 276959), (419, 204910), (661, 129890), (838, 102455), (1322, 64945), (2095, 40982), (3305, 25978), (4190, 20491), (6610, 12989)]