205018640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1187}}^1$

素因数の和:1344

約数の個数: 80

約数和(自身を含む): 509110272

約数和(自身を除く): 304091632

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 127, 136, 170, 254, 272, 340, 508, 635, 680, 1016, 1187, 1270, 1360, 2032, 2159, 2374, 2540, 4318, 4748, 5080, 5935, 8636, 9496, 10160, 10795, 11870, 17272, 18992, 20179, 21590, 23740, 34544, 40358, 43180, 47480, 80716, 86360, 94960, 100895, 150749, 161432, 172720, 201790, 301498, 322864, 403580, 602996, 753745, 807160, 1205992, 1507490, 1614320, 2411984, 2562733, 3014980, 5125466, 6029960, 10250932, 12059920, 12813665, 20501864, 25627330, 41003728, 51254660, 102509320, 205018640]

約数ペア:

[(1, 205018640), (2, 102509320), (4, 51254660), (5, 41003728), (8, 25627330), (10, 20501864), (16, 12813665), (17, 12059920), (20, 10250932), (34, 6029960), (40, 5125466), (68, 3014980), (80, 2562733), (85, 2411984), (127, 1614320), (136, 1507490), (170, 1205992), (254, 807160), (272, 753745), (340, 602996), (508, 403580), (635, 322864), (680, 301498), (1016, 201790), (1187, 172720), (1270, 161432), (1360, 150749), (2032, 100895), (2159, 94960), (2374, 86360), (2540, 80716), (4318, 47480), (4748, 43180), (5080, 40358), (5935, 34544), (8636, 23740), (9496, 21590), (10160, 20179), (10795, 18992), (11870, 17272)]