19663280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:143

約数の個数: 160

約数和(自身を含む): 58579584

約数和(自身を除く): 38916304

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 37, 40, 52, 56, 65, 70, 73, 74, 80, 91, 104, 112, 130, 140, 146, 148, 182, 185, 208, 259, 260, 280, 292, 296, 364, 365, 370, 455, 481, 511, 518, 520, 560, 584, 592, 728, 730, 740, 910, 949, 962, 1022, 1036, 1040, 1168, 1295, 1456, 1460, 1480, 1820, 1898, 1924, 2044, 2072, 2405, 2555, 2590, 2701, 2920, 2960, 3367, 3640, 3796, 3848, 4088, 4144, 4745, 4810, 5110, 5180, 5402, 5840, 6643, 6734, 7280, 7592, 7696, 8176, 9490, 9620, 10220, 10360, 10804, 13286, 13468, 13505, 15184, 16835, 18907, 18980, 19240, 20440, 20720, 21608, 26572, 26936, 27010, 33215, 33670, 35113, 37814, 37960, 38480, 40880, 43216, 53144, 53872, 54020, 66430, 67340, 70226, 75628, 75920, 94535, 106288, 108040, 132860, 134680, 140452, 151256, 175565, 189070, 216080, 245791, 265720, 269360, 280904, 302512, 351130, 378140, 491582, 531440, 561808, 702260, 756280, 983164, 1228955, 1404520, 1512560, 1966328, 2457910, 2809040, 3932656, 4915820, 9831640, 19663280]

約数ペア:

[(1, 19663280), (2, 9831640), (4, 4915820), (5, 3932656), (7, 2809040), (8, 2457910), (10, 1966328), (13, 1512560), (14, 1404520), (16, 1228955), (20, 983164), (26, 756280), (28, 702260), (35, 561808), (37, 531440), (40, 491582), (52, 378140), (56, 351130), (65, 302512), (70, 280904), (73, 269360), (74, 265720), (80, 245791), (91, 216080), (104, 189070), (112, 175565), (130, 151256), (140, 140452), (146, 134680), (148, 132860), (182, 108040), (185, 106288), (208, 94535), (259, 75920), (260, 75628), (280, 70226), (292, 67340), (296, 66430), (364, 54020), (365, 53872), (370, 53144), (455, 43216), (481, 40880), (511, 38480), (518, 37960), (520, 37814), (560, 35113), (584, 33670), (592, 33215), (728, 27010), (730, 26936), (740, 26572), (910, 21608), (949, 20720), (962, 20440), (1022, 19240), (1036, 18980), (1040, 18907), (1168, 16835), (1295, 15184), (1456, 13505), (1460, 13468), (1480, 13286), (1820, 10804), (1898, 10360), (1924, 10220), (2044, 9620), (2072, 9490), (2405, 8176), (2555, 7696), (2590, 7592), (2701, 7280), (2920, 6734), (2960, 6643), (3367, 5840), (3640, 5402), (3796, 5180), (3848, 5110), (4088, 4810), (4144, 4745)]