8101980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 27256320

約数和(自身を除く): 19154340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 103, 114, 115, 138, 171, 180, 190, 206, 207, 228, 230, 276, 285, 309, 342, 345, 380, 412, 414, 437, 460, 515, 570, 618, 684, 690, 828, 855, 874, 927, 1030, 1035, 1140, 1236, 1311, 1380, 1545, 1710, 1748, 1854, 1957, 2060, 2070, 2185, 2369, 2622, 3090, 3420, 3708, 3914, 3933, 4140, 4370, 4635, 4738, 5244, 5871, 6180, 6555, 7107, 7828, 7866, 8740, 9270, 9476, 9785, 11742, 11845, 13110, 14214, 15732, 17613, 18540, 19570, 19665, 21321, 23484, 23690, 26220, 28428, 29355, 35226, 35535, 39140, 39330, 42642, 45011, 47380, 58710, 70452, 71070, 78660, 85284, 88065, 90022, 106605, 117420, 135033, 142140, 176130, 180044, 213210, 225055, 270066, 352260, 405099, 426420, 450110, 540132, 675165, 810198, 900220, 1350330, 1620396, 2025495, 2700660, 4050990, 8101980]

約数ペア:

[(1, 8101980), (2, 4050990), (3, 2700660), (4, 2025495), (5, 1620396), (6, 1350330), (9, 900220), (10, 810198), (12, 675165), (15, 540132), (18, 450110), (19, 426420), (20, 405099), (23, 352260), (30, 270066), (36, 225055), (38, 213210), (45, 180044), (46, 176130), (57, 142140), (60, 135033), (69, 117420), (76, 106605), (90, 90022), (92, 88065), (95, 85284), (103, 78660), (114, 71070), (115, 70452), (138, 58710), (171, 47380), (180, 45011), (190, 42642), (206, 39330), (207, 39140), (228, 35535), (230, 35226), (276, 29355), (285, 28428), (309, 26220), (342, 23690), (345, 23484), (380, 21321), (412, 19665), (414, 19570), (437, 18540), (460, 17613), (515, 15732), (570, 14214), (618, 13110), (684, 11845), (690, 11742), (828, 9785), (855, 9476), (874, 9270), (927, 8740), (1030, 7866), (1035, 7828), (1140, 7107), (1236, 6555), (1311, 6180), (1380, 5871), (1545, 5244), (1710, 4738), (1748, 4635), (1854, 4370), (1957, 4140), (2060, 3933), (2070, 3914), (2185, 3708), (2369, 3420), (2622, 3090)]