217339760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{257}}^1$

素因数の和:343

約数の個数: 120

約数和(自身を含む): 571825008

約数和(自身を除く): 354485248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 257, 310, 341, 440, 496, 514, 620, 682, 880, 961, 1028, 1240, 1285, 1364, 1705, 1922, 2056, 2480, 2570, 2728, 2827, 3410, 3844, 4112, 4805, 5140, 5456, 5654, 6820, 7688, 7967, 9610, 10280, 10571, 11308, 13640, 14135, 15376, 15934, 19220, 20560, 21142, 22616, 27280, 28270, 31868, 38440, 39835, 42284, 45232, 52855, 56540, 63736, 76880, 79670, 84568, 87637, 105710, 113080, 127472, 159340, 169136, 175274, 211420, 226160, 246977, 318680, 350548, 422840, 438185, 493954, 637360, 701096, 845680, 876370, 987908, 1234885, 1402192, 1752740, 1975816, 2469770, 2716747, 3505480, 3951632, 4939540, 5433494, 7010960, 9879080, 10866988, 13583735, 19758160, 21733976, 27167470, 43467952, 54334940, 108669880, 217339760]

約数ペア:

[(1, 217339760), (2, 108669880), (4, 54334940), (5, 43467952), (8, 27167470), (10, 21733976), (11, 19758160), (16, 13583735), (20, 10866988), (22, 9879080), (31, 7010960), (40, 5433494), (44, 4939540), (55, 3951632), (62, 3505480), (80, 2716747), (88, 2469770), (110, 1975816), (124, 1752740), (155, 1402192), (176, 1234885), (220, 987908), (248, 876370), (257, 845680), (310, 701096), (341, 637360), (440, 493954), (496, 438185), (514, 422840), (620, 350548), (682, 318680), (880, 246977), (961, 226160), (1028, 211420), (1240, 175274), (1285, 169136), (1364, 159340), (1705, 127472), (1922, 113080), (2056, 105710), (2480, 87637), (2570, 84568), (2728, 79670), (2827, 76880), (3410, 63736), (3844, 56540), (4112, 52855), (4805, 45232), (5140, 42284), (5456, 39835), (5654, 38440), (6820, 31868), (7688, 28270), (7967, 27280), (9610, 22616), (10280, 21142), (10571, 20560), (11308, 19220), (13640, 15934), (14135, 15376)]