388636735960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{643}}^1\times {\mathrm{2143}}^1$

素因数の和:3449

約数の個数: 128

約数和(自身を含む): 957347112960

約数和(自身を除く): 568710377000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 641, 643, 1282, 1286, 2143, 2564, 2572, 3205, 3215, 4286, 5128, 5144, 6410, 6430, 7051, 7073, 8572, 10715, 12820, 12860, 14102, 14146, 17144, 21430, 23573, 25640, 25720, 28204, 28292, 35255, 35365, 42860, 47146, 56408, 56584, 70510, 70730, 85720, 94292, 117865, 141020, 141460, 188584, 235730, 282040, 282920, 412163, 471460, 824326, 942920, 1373663, 1377949, 1648652, 2060815, 2747326, 2755898, 3297304, 4121630, 4533793, 5494652, 5511796, 6868315, 6889745, 8243260, 9067586, 10989304, 11023592, 13736630, 13779490, 15110293, 15157439, 16486520, 18135172, 22668965, 27473260, 27558980, 30220586, 30314878, 36270344, 45337930, 54946520, 55117960, 60441172, 60629756, 75551465, 75787195, 90675860, 120882344, 121259512, 151102930, 151574390, 181351720, 302205860, 303148780, 604411720, 606297560, 883265309, 1766530618, 3533061236, 4416326545, 7066122472, 8832653090, 9715918399, 17665306180, 19431836798, 35330612360, 38863673596, 48579591995, 77727347192, 97159183990, 194318367980, 388636735960]

約数ペア:

[(1, 388636735960), (2, 194318367980), (4, 97159183990), (5, 77727347192), (8, 48579591995), (10, 38863673596), (11, 35330612360), (20, 19431836798), (22, 17665306180), (40, 9715918399), (44, 8832653090), (55, 7066122472), (88, 4416326545), (110, 3533061236), (220, 1766530618), (440, 883265309), (641, 606297560), (643, 604411720), (1282, 303148780), (1286, 302205860), (2143, 181351720), (2564, 151574390), (2572, 151102930), (3205, 121259512), (3215, 120882344), (4286, 90675860), (5128, 75787195), (5144, 75551465), (6410, 60629756), (6430, 60441172), (7051, 55117960), (7073, 54946520), (8572, 45337930), (10715, 36270344), (12820, 30314878), (12860, 30220586), (14102, 27558980), (14146, 27473260), (17144, 22668965), (21430, 18135172), (23573, 16486520), (25640, 15157439), (25720, 15110293), (28204, 13779490), (28292, 13736630), (35255, 11023592), (35365, 10989304), (42860, 9067586), (47146, 8243260), (56408, 6889745), (56584, 6868315), (70510, 5511796), (70730, 5494652), (85720, 4533793), (94292, 4121630), (117865, 3297304), (141020, 2755898), (141460, 2747326), (188584, 2060815), (235730, 1648652), (282040, 1377949), (282920, 1373663), (412163, 942920), (471460, 824326)]