221579280

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{607}}^1$

素因数の和:655

約数の個数: 240

約数和(自身を含む): 827804160

約数和(自身を除く): 606224880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 169, 180, 195, 208, 216, 234, 240, 260, 270, 312, 338, 351, 360, 390, 432, 468, 507, 520, 540, 585, 607, 624, 676, 702, 720, 780, 845, 936, 1014, 1040, 1080, 1170, 1214, 1352, 1404, 1521, 1560, 1690, 1755, 1821, 1872, 2028, 2160, 2340, 2428, 2535, 2704, 2808, 3035, 3042, 3120, 3380, 3510, 3642, 4056, 4563, 4680, 4856, 5070, 5463, 5616, 6070, 6084, 6760, 7020, 7284, 7605, 7891, 8112, 9105, 9126, 9360, 9712, 10140, 10926, 12140, 12168, 13520, 14040, 14568, 15210, 15782, 16389, 18210, 18252, 20280, 21852, 22815, 23673, 24280, 24336, 27315, 28080, 29136, 30420, 31564, 32778, 36420, 36504, 39455, 40560, 43704, 45630, 47346, 48560, 54630, 60840, 63128, 65556, 71019, 72840, 73008, 78910, 81945, 87408, 91260, 94692, 102583, 109260, 118365, 121680, 126256, 131112, 142038, 145680, 157820, 163890, 182520, 189384, 205166, 213057, 218520, 236730, 262224, 284076, 307749, 315640, 327780, 355095, 365040, 378768, 410332, 426114, 437040, 473460, 512915, 568152, 615498, 631280, 655560, 710190, 820664, 852228, 923247, 946920, 1025830, 1065285, 1136304, 1230996, 1311120, 1420380, 1538745, 1641328, 1704456, 1846494, 1893840, 2051660, 2130570, 2461992, 2769741, 2840760, 3077490, 3408912, 3692988, 4103320, 4261140, 4616235, 4923984, 5539482, 5681520, 6154980, 7385976, 8206640, 8522280, 9232470, 11078964, 12309960, 13848705, 14771952, 17044560, 18464940, 22157928, 24619920, 27697410, 36929880, 44315856, 55394820, 73859760, 110789640, 221579280]

約数ペア:

[(1, 221579280), (2, 110789640), (3, 73859760), (4, 55394820), (5, 44315856), (6, 36929880), (8, 27697410), (9, 24619920), (10, 22157928), (12, 18464940), (13, 17044560), (15, 14771952), (16, 13848705), (18, 12309960), (20, 11078964), (24, 9232470), (26, 8522280), (27, 8206640), (30, 7385976), (36, 6154980), (39, 5681520), (40, 5539482), (45, 4923984), (48, 4616235), (52, 4261140), (54, 4103320), (60, 3692988), (65, 3408912), (72, 3077490), (78, 2840760), (80, 2769741), (90, 2461992), (104, 2130570), (108, 2051660), (117, 1893840), (120, 1846494), (130, 1704456), (135, 1641328), (144, 1538745), (156, 1420380), (169, 1311120), (180, 1230996), (195, 1136304), (208, 1065285), (216, 1025830), (234, 946920), (240, 923247), (260, 852228), (270, 820664), (312, 710190), (338, 655560), (351, 631280), (360, 615498), (390, 568152), (432, 512915), (468, 473460), (507, 437040), (520, 426114), (540, 410332), (585, 378768), (607, 365040), (624, 355095), (676, 327780), (702, 315640), (720, 307749), (780, 284076), (845, 262224), (936, 236730), (1014, 218520), (1040, 213057), (1080, 205166), (1170, 189384), (1214, 182520), (1352, 163890), (1404, 157820), (1521, 145680), (1560, 142038), (1690, 131112), (1755, 126256), (1821, 121680), (1872, 118365), (2028, 109260), (2160, 102583), (2340, 94692), (2428, 91260), (2535, 87408), (2704, 81945), (2808, 78910), (3035, 73008), (3042, 72840), (3120, 71019), (3380, 65556), (3510, 63128), (3642, 60840), (4056, 54630), (4563, 48560), (4680, 47346), (4856, 45630), (5070, 43704), (5463, 40560), (5616, 39455), (6070, 36504), (6084, 36420), (6760, 32778), (7020, 31564), (7284, 30420), (7605, 29136), (7891, 28080), (8112, 27315), (9105, 24336), (9126, 24280), (9360, 23673), (9712, 22815), (10140, 21852), (10926, 20280), (12140, 18252), (12168, 18210), (13520, 16389), (14040, 15782), (14568, 15210)]