221247120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{269}}^1$

素因数の和:457

約数の個数: 160

約数和(自身を含む): 723168000

約数和(自身を除く): 501920880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 149, 184, 230, 240, 269, 276, 298, 345, 368, 447, 460, 538, 552, 596, 690, 745, 807, 894, 920, 1076, 1104, 1192, 1345, 1380, 1490, 1614, 1788, 1840, 2152, 2235, 2384, 2690, 2760, 2980, 3228, 3427, 3576, 4035, 4304, 4470, 5380, 5520, 5960, 6187, 6456, 6854, 7152, 8070, 8940, 10281, 10760, 11920, 12374, 12912, 13708, 16140, 17135, 17880, 18561, 20562, 21520, 24748, 27416, 30935, 32280, 34270, 35760, 37122, 40081, 41124, 49496, 51405, 54832, 61870, 64560, 68540, 74244, 80162, 82248, 92805, 98992, 102810, 120243, 123740, 137080, 148488, 160324, 164496, 185610, 200405, 205620, 240486, 247480, 274160, 296976, 320648, 371220, 400810, 411240, 480972, 494960, 601215, 641296, 742440, 801620, 822480, 921863, 961944, 1202430, 1484880, 1603240, 1843726, 1923888, 2404860, 2765589, 3206480, 3687452, 4609315, 4809720, 5531178, 7374904, 9218630, 9619440, 11062356, 13827945, 14749808, 18437260, 22124712, 27655890, 36874520, 44249424, 55311780, 73749040, 110623560, 221247120]

約数ペア:

[(1, 221247120), (2, 110623560), (3, 73749040), (4, 55311780), (5, 44249424), (6, 36874520), (8, 27655890), (10, 22124712), (12, 18437260), (15, 14749808), (16, 13827945), (20, 11062356), (23, 9619440), (24, 9218630), (30, 7374904), (40, 5531178), (46, 4809720), (48, 4609315), (60, 3687452), (69, 3206480), (80, 2765589), (92, 2404860), (115, 1923888), (120, 1843726), (138, 1603240), (149, 1484880), (184, 1202430), (230, 961944), (240, 921863), (269, 822480), (276, 801620), (298, 742440), (345, 641296), (368, 601215), (447, 494960), (460, 480972), (538, 411240), (552, 400810), (596, 371220), (690, 320648), (745, 296976), (807, 274160), (894, 247480), (920, 240486), (1076, 205620), (1104, 200405), (1192, 185610), (1345, 164496), (1380, 160324), (1490, 148488), (1614, 137080), (1788, 123740), (1840, 120243), (2152, 102810), (2235, 98992), (2384, 92805), (2690, 82248), (2760, 80162), (2980, 74244), (3228, 68540), (3427, 64560), (3576, 61870), (4035, 54832), (4304, 51405), (4470, 49496), (5380, 41124), (5520, 40081), (5960, 37122), (6187, 35760), (6456, 34270), (6854, 32280), (7152, 30935), (8070, 27416), (8940, 24748), (10281, 21520), (10760, 20562), (11920, 18561), (12374, 17880), (12912, 17135), (13708, 16140)]