198326920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{701}}^1$

素因数の和:1366

約数の個数: 64

約数和(自身を含む): 488255040

約数和(自身を除く): 289928120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 643, 701, 1286, 1402, 2572, 2804, 3215, 3505, 5144, 5608, 6430, 7010, 7073, 7711, 12860, 14020, 14146, 15422, 25720, 28040, 28292, 30844, 35365, 38555, 56584, 61688, 70730, 77110, 141460, 154220, 282920, 308440, 450743, 901486, 1802972, 2253715, 3605944, 4507430, 4958173, 9014860, 9916346, 18029720, 19832692, 24790865, 39665384, 49581730, 99163460, 198326920]

約数ペア:

[(1, 198326920), (2, 99163460), (4, 49581730), (5, 39665384), (8, 24790865), (10, 19832692), (11, 18029720), (20, 9916346), (22, 9014860), (40, 4958173), (44, 4507430), (55, 3605944), (88, 2253715), (110, 1802972), (220, 901486), (440, 450743), (643, 308440), (701, 282920), (1286, 154220), (1402, 141460), (2572, 77110), (2804, 70730), (3215, 61688), (3505, 56584), (5144, 38555), (5608, 35365), (6430, 30844), (7010, 28292), (7073, 28040), (7711, 25720), (12860, 15422), (14020, 14146)]