305667440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:575

約数の個数: 160

約数和(自身を含む): 833280000

約数和(自身を除く): 527612560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 80, 95, 104, 124, 130, 152, 155, 190, 208, 247, 248, 260, 304, 310, 380, 403, 494, 496, 499, 520, 589, 620, 760, 806, 988, 998, 1040, 1178, 1235, 1240, 1520, 1612, 1976, 1996, 2015, 2356, 2470, 2480, 2495, 2945, 3224, 3952, 3992, 4030, 4712, 4940, 4990, 5890, 6448, 6487, 7657, 7984, 8060, 9424, 9481, 9880, 9980, 11780, 12974, 15314, 15469, 16120, 18962, 19760, 19960, 23560, 25948, 30628, 30938, 32240, 32435, 37924, 38285, 39920, 47120, 47405, 51896, 61256, 61876, 64870, 75848, 76570, 77345, 94810, 103792, 122512, 123253, 123752, 129740, 151696, 153140, 154690, 189620, 201097, 246506, 247504, 259480, 293911, 306280, 309380, 379240, 402194, 493012, 518960, 587822, 612560, 616265, 618760, 758480, 804388, 986024, 1005485, 1175644, 1232530, 1237520, 1469555, 1608776, 1972048, 2010970, 2351288, 2465060, 2939110, 3217552, 3820843, 4021940, 4702576, 4930120, 5878220, 7641686, 8043880, 9860240, 11756440, 15283372, 16087760, 19104215, 23512880, 30566744, 38208430, 61133488, 76416860, 152833720, 305667440]

約数ペア:

[(1, 305667440), (2, 152833720), (4, 76416860), (5, 61133488), (8, 38208430), (10, 30566744), (13, 23512880), (16, 19104215), (19, 16087760), (20, 15283372), (26, 11756440), (31, 9860240), (38, 8043880), (40, 7641686), (52, 5878220), (62, 4930120), (65, 4702576), (76, 4021940), (80, 3820843), (95, 3217552), (104, 2939110), (124, 2465060), (130, 2351288), (152, 2010970), (155, 1972048), (190, 1608776), (208, 1469555), (247, 1237520), (248, 1232530), (260, 1175644), (304, 1005485), (310, 986024), (380, 804388), (403, 758480), (494, 618760), (496, 616265), (499, 612560), (520, 587822), (589, 518960), (620, 493012), (760, 402194), (806, 379240), (988, 309380), (998, 306280), (1040, 293911), (1178, 259480), (1235, 247504), (1240, 246506), (1520, 201097), (1612, 189620), (1976, 154690), (1996, 153140), (2015, 151696), (2356, 129740), (2470, 123752), (2480, 123253), (2495, 122512), (2945, 103792), (3224, 94810), (3952, 77345), (3992, 76570), (4030, 75848), (4712, 64870), (4940, 61876), (4990, 61256), (5890, 51896), (6448, 47405), (6487, 47120), (7657, 39920), (7984, 38285), (8060, 37924), (9424, 32435), (9481, 32240), (9880, 30938), (9980, 30628), (11780, 25948), (12974, 23560), (15314, 19960), (15469, 19760), (16120, 18962)]