20384520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 67132800

約数和(自身を除く): 46748280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 73, 78, 104, 120, 130, 146, 156, 179, 195, 219, 260, 292, 312, 358, 365, 390, 438, 520, 537, 584, 716, 730, 780, 876, 895, 949, 1074, 1095, 1432, 1460, 1560, 1752, 1790, 1898, 2148, 2190, 2327, 2685, 2847, 2920, 3580, 3796, 4296, 4380, 4654, 4745, 5370, 5694, 6981, 7160, 7592, 8760, 9308, 9490, 10740, 11388, 11635, 13067, 13962, 14235, 18616, 18980, 21480, 22776, 23270, 26134, 27924, 28470, 34905, 37960, 39201, 46540, 52268, 55848, 56940, 65335, 69810, 78402, 93080, 104536, 113880, 130670, 139620, 156804, 169871, 196005, 261340, 279240, 313608, 339742, 392010, 509613, 522680, 679484, 784020, 849355, 1019226, 1358968, 1568040, 1698710, 2038452, 2548065, 3397420, 4076904, 5096130, 6794840, 10192260, 20384520]

約数ペア:

[(1, 20384520), (2, 10192260), (3, 6794840), (4, 5096130), (5, 4076904), (6, 3397420), (8, 2548065), (10, 2038452), (12, 1698710), (13, 1568040), (15, 1358968), (20, 1019226), (24, 849355), (26, 784020), (30, 679484), (39, 522680), (40, 509613), (52, 392010), (60, 339742), (65, 313608), (73, 279240), (78, 261340), (104, 196005), (120, 169871), (130, 156804), (146, 139620), (156, 130670), (179, 113880), (195, 104536), (219, 93080), (260, 78402), (292, 69810), (312, 65335), (358, 56940), (365, 55848), (390, 52268), (438, 46540), (520, 39201), (537, 37960), (584, 34905), (716, 28470), (730, 27924), (780, 26134), (876, 23270), (895, 22776), (949, 21480), (1074, 18980), (1095, 18616), (1432, 14235), (1460, 13962), (1560, 13067), (1752, 11635), (1790, 11388), (1898, 10740), (2148, 9490), (2190, 9308), (2327, 8760), (2685, 7592), (2847, 7160), (2920, 6981), (3580, 5694), (3796, 5370), (4296, 4745), (4380, 4654)]