19970808

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^2$

素因数の和:90

約数の個数: 144

約数和(自身を含む): 61781160

約数和(自身を除く): 41810352

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 23, 24, 26, 33, 39, 44, 46, 52, 66, 69, 78, 88, 92, 104, 121, 132, 138, 143, 156, 184, 242, 253, 264, 276, 286, 299, 312, 363, 429, 484, 506, 529, 552, 572, 598, 726, 759, 858, 897, 968, 1012, 1058, 1144, 1196, 1452, 1518, 1573, 1587, 1716, 1794, 2024, 2116, 2392, 2783, 2904, 3036, 3146, 3174, 3289, 3432, 3588, 4232, 4719, 5566, 5819, 6072, 6292, 6348, 6578, 6877, 7176, 8349, 9438, 9867, 11132, 11638, 12584, 12696, 13156, 13754, 16698, 17457, 18876, 19734, 20631, 22264, 23276, 26312, 27508, 33396, 34914, 36179, 37752, 39468, 41262, 46552, 55016, 64009, 66792, 69828, 72358, 75647, 78936, 82524, 108537, 128018, 139656, 144716, 151294, 165048, 192027, 217074, 226941, 256036, 289432, 302588, 384054, 434148, 453882, 512072, 605176, 768108, 832117, 868296, 907764, 1536216, 1664234, 1815528, 2496351, 3328468, 4992702, 6656936, 9985404, 19970808]

約数ペア:

[(1, 19970808), (2, 9985404), (3, 6656936), (4, 4992702), (6, 3328468), (8, 2496351), (11, 1815528), (12, 1664234), (13, 1536216), (22, 907764), (23, 868296), (24, 832117), (26, 768108), (33, 605176), (39, 512072), (44, 453882), (46, 434148), (52, 384054), (66, 302588), (69, 289432), (78, 256036), (88, 226941), (92, 217074), (104, 192027), (121, 165048), (132, 151294), (138, 144716), (143, 139656), (156, 128018), (184, 108537), (242, 82524), (253, 78936), (264, 75647), (276, 72358), (286, 69828), (299, 66792), (312, 64009), (363, 55016), (429, 46552), (484, 41262), (506, 39468), (529, 37752), (552, 36179), (572, 34914), (598, 33396), (726, 27508), (759, 26312), (858, 23276), (897, 22264), (968, 20631), (1012, 19734), (1058, 18876), (1144, 17457), (1196, 16698), (1452, 13754), (1518, 13156), (1573, 12696), (1587, 12584), (1716, 11638), (1794, 11132), (2024, 9867), (2116, 9438), (2392, 8349), (2783, 7176), (2904, 6877), (3036, 6578), (3146, 6348), (3174, 6292), (3289, 6072), (3432, 5819), (3588, 5566), (4232, 4719)]