21854040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{14009}}^1$

素因数の和:14036

約数の個数: 64

約数和(自身を含む): 70610400

約数和(自身を除く): 48756360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 14009, 28018, 42027, 56036, 70045, 84054, 112072, 140090, 168108, 182117, 210135, 280180, 336216, 364234, 420270, 546351, 560360, 728468, 840540, 910585, 1092702, 1456936, 1681080, 1821170, 2185404, 2731755, 3642340, 4370808, 5463510, 7284680, 10927020, 21854040]

約数ペア:

[(1, 21854040), (2, 10927020), (3, 7284680), (4, 5463510), (5, 4370808), (6, 3642340), (8, 2731755), (10, 2185404), (12, 1821170), (13, 1681080), (15, 1456936), (20, 1092702), (24, 910585), (26, 840540), (30, 728468), (39, 560360), (40, 546351), (52, 420270), (60, 364234), (65, 336216), (78, 280180), (104, 210135), (120, 182117), (130, 168108), (156, 140090), (195, 112072), (260, 84054), (312, 70045), (390, 56036), (520, 42027), (780, 28018), (1560, 14009)]