20782320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6661}}^1$

素因数の和:6690

約数の個数: 80

約数和(自身を含む): 69391392

約数和(自身を除く): 48609072

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, 6661, 13322, 19983, 26644, 33305, 39966, 53288, 66610, 79932, 86593, 99915, 106576, 133220, 159864, 173186, 199830, 259779, 266440, 319728, 346372, 399660, 432965, 519558, 532880, 692744, 799320, 865930, 1039116, 1298895, 1385488, 1598640, 1731860, 2078232, 2597790, 3463720, 4156464, 5195580, 6927440, 10391160, 20782320]

約数ペア:

[(1, 20782320), (2, 10391160), (3, 6927440), (4, 5195580), (5, 4156464), (6, 3463720), (8, 2597790), (10, 2078232), (12, 1731860), (13, 1598640), (15, 1385488), (16, 1298895), (20, 1039116), (24, 865930), (26, 799320), (30, 692744), (39, 532880), (40, 519558), (48, 432965), (52, 399660), (60, 346372), (65, 319728), (78, 266440), (80, 259779), (104, 199830), (120, 173186), (130, 159864), (156, 133220), (195, 106576), (208, 99915), (240, 86593), (260, 79932), (312, 66610), (390, 53288), (520, 39966), (624, 33305), (780, 26644), (1040, 19983), (1560, 13322), (3120, 6661)]