19775600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3803}}^1$

素因数の和:3834

約数の個数: 60

約数和(自身を含む): 51179016

約数和(自身を除く): 31403416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 3803, 5200, 7606, 15212, 19015, 30424, 38030, 49439, 60848, 76060, 95075, 98878, 152120, 190150, 197756, 247195, 304240, 380300, 395512, 494390, 760600, 791024, 988780, 1235975, 1521200, 1977560, 2471950, 3955120, 4943900, 9887800, 19775600]

約数ペア:

[(1, 19775600), (2, 9887800), (4, 4943900), (5, 3955120), (8, 2471950), (10, 1977560), (13, 1521200), (16, 1235975), (20, 988780), (25, 791024), (26, 760600), (40, 494390), (50, 395512), (52, 380300), (65, 304240), (80, 247195), (100, 197756), (104, 190150), (130, 152120), (200, 98878), (208, 95075), (260, 76060), (325, 60848), (400, 49439), (520, 38030), (650, 30424), (1040, 19015), (1300, 15212), (2600, 7606), (3803, 5200)]