31221840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10007}}^1$

素因数の和:10036

約数の個数: 80

約数和(自身を含む): 104243328

約数和(自身を除く): 73021488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 10007, 20014, 30021, 40028, 50035, 60042, 80056, 100070, 120084, 130091, 150105, 160112, 200140, 240168, 260182, 300210, 390273, 400280, 480336, 520364, 600420, 650455, 780546, 800560, 1040728, 1200840, 1300910, 1561092, 1951365, 2081456, 2401680, 2601820, 3122184, 3902730, 5203640, 6244368, 7805460, 10407280, 15610920, 31221840]

約数ペア:

[(1, 31221840), (2, 15610920), (3, 10407280), (4, 7805460), (5, 6244368), (6, 5203640), (8, 3902730), (10, 3122184), (12, 2601820), (13, 2401680), (15, 2081456), (16, 1951365), (20, 1561092), (24, 1300910), (26, 1200840), (30, 1040728), (39, 800560), (40, 780546), (48, 650455), (52, 600420), (60, 520364), (65, 480336), (78, 400280), (80, 390273), (104, 300210), (120, 260182), (130, 240168), (156, 200140), (195, 160112), (208, 150105), (240, 130091), (260, 120084), (312, 100070), (390, 80056), (520, 60042), (624, 50035), (780, 40028), (1040, 30021), (1560, 20014), (3120, 10007)]