19529440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:129

約数の個数: 144

約数和(自身を含む): 55847232

約数和(自身を除く): 36317792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 49, 53, 56, 70, 80, 94, 98, 106, 112, 140, 160, 188, 196, 212, 224, 235, 245, 265, 280, 329, 371, 376, 392, 424, 470, 490, 530, 560, 658, 742, 752, 784, 848, 940, 980, 1060, 1120, 1316, 1484, 1504, 1568, 1645, 1696, 1855, 1880, 1960, 2120, 2303, 2491, 2597, 2632, 2968, 3290, 3710, 3760, 3920, 4240, 4606, 4982, 5194, 5264, 5936, 6580, 7420, 7520, 7840, 8480, 9212, 9964, 10388, 10528, 11515, 11872, 12455, 12985, 13160, 14840, 17437, 18424, 19928, 20776, 23030, 24910, 25970, 26320, 29680, 34874, 36848, 39856, 41552, 46060, 49820, 51940, 52640, 59360, 69748, 73696, 79712, 83104, 87185, 92120, 99640, 103880, 122059, 139496, 174370, 184240, 199280, 207760, 244118, 278992, 348740, 368480, 398560, 415520, 488236, 557984, 610295, 697480, 976472, 1220590, 1394960, 1952944, 2441180, 2789920, 3905888, 4882360, 9764720, 19529440]

約数ペア:

[(1, 19529440), (2, 9764720), (4, 4882360), (5, 3905888), (7, 2789920), (8, 2441180), (10, 1952944), (14, 1394960), (16, 1220590), (20, 976472), (28, 697480), (32, 610295), (35, 557984), (40, 488236), (47, 415520), (49, 398560), (53, 368480), (56, 348740), (70, 278992), (80, 244118), (94, 207760), (98, 199280), (106, 184240), (112, 174370), (140, 139496), (160, 122059), (188, 103880), (196, 99640), (212, 92120), (224, 87185), (235, 83104), (245, 79712), (265, 73696), (280, 69748), (329, 59360), (371, 52640), (376, 51940), (392, 49820), (424, 46060), (470, 41552), (490, 39856), (530, 36848), (560, 34874), (658, 29680), (742, 26320), (752, 25970), (784, 24910), (848, 23030), (940, 20776), (980, 19928), (1060, 18424), (1120, 17437), (1316, 14840), (1484, 13160), (1504, 12985), (1568, 12455), (1645, 11872), (1696, 11515), (1855, 10528), (1880, 10388), (1960, 9964), (2120, 9212), (2303, 8480), (2491, 7840), (2597, 7520), (2632, 7420), (2968, 6580), (3290, 5936), (3710, 5264), (3760, 5194), (3920, 4982), (4240, 4606)]