320203520

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2749}}^1$

素因数の和:2790

約数の個数: 144

約数和(自身を含む): 944328000

約数和(自身を除く): 624124480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 256, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1280, 1456, 1664, 1792, 1820, 2080, 2240, 2749, 2912, 3328, 3640, 4160, 4480, 5498, 5824, 7280, 8320, 8960, 10996, 11648, 13745, 14560, 16640, 19243, 21992, 23296, 27490, 29120, 35737, 38486, 43984, 54980, 58240, 71474, 76972, 87968, 96215, 109960, 116480, 142948, 153944, 175936, 178685, 192430, 219920, 250159, 285896, 307888, 351872, 357370, 384860, 439840, 500318, 571792, 615776, 703744, 714740, 769720, 879680, 1000636, 1143584, 1231552, 1250795, 1429480, 1539440, 1759360, 2001272, 2287168, 2463104, 2501590, 2858960, 3078880, 3518720, 4002544, 4574336, 4926208, 5003180, 5717920, 6157760, 8005088, 9148672, 10006360, 11435840, 12315520, 16010176, 20012720, 22871680, 24631040, 32020352, 40025440, 45743360, 64040704, 80050880, 160101760, 320203520]

約数ペア:

[(1, 320203520), (2, 160101760), (4, 80050880), (5, 64040704), (7, 45743360), (8, 40025440), (10, 32020352), (13, 24631040), (14, 22871680), (16, 20012720), (20, 16010176), (26, 12315520), (28, 11435840), (32, 10006360), (35, 9148672), (40, 8005088), (52, 6157760), (56, 5717920), (64, 5003180), (65, 4926208), (70, 4574336), (80, 4002544), (91, 3518720), (104, 3078880), (112, 2858960), (128, 2501590), (130, 2463104), (140, 2287168), (160, 2001272), (182, 1759360), (208, 1539440), (224, 1429480), (256, 1250795), (260, 1231552), (280, 1143584), (320, 1000636), (364, 879680), (416, 769720), (448, 714740), (455, 703744), (520, 615776), (560, 571792), (640, 500318), (728, 439840), (832, 384860), (896, 357370), (910, 351872), (1040, 307888), (1120, 285896), (1280, 250159), (1456, 219920), (1664, 192430), (1792, 178685), (1820, 175936), (2080, 153944), (2240, 142948), (2749, 116480), (2912, 109960), (3328, 96215), (3640, 87968), (4160, 76972), (4480, 71474), (5498, 58240), (5824, 54980), (7280, 43984), (8320, 38486), (8960, 35737), (10996, 29120), (11648, 27490), (13745, 23296), (14560, 21992), (16640, 19243)]