2019983840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{2551}}^1$

素因数の和:2681

約数の個数: 144

約数和(自身を含む): 5608509984

約数和(自身を除く): 3588526144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 101, 112, 140, 160, 196, 202, 224, 245, 280, 392, 404, 490, 505, 560, 707, 784, 808, 980, 1010, 1120, 1414, 1568, 1616, 1960, 2020, 2551, 2828, 3232, 3535, 3920, 4040, 4949, 5102, 5656, 7070, 7840, 8080, 9898, 10204, 11312, 12755, 14140, 16160, 17857, 19796, 20408, 22624, 24745, 25510, 28280, 35714, 39592, 40816, 49490, 51020, 56560, 71428, 79184, 81632, 89285, 98980, 102040, 113120, 124999, 142856, 158368, 178570, 197960, 204080, 249998, 257651, 285712, 357140, 395920, 408160, 499996, 515302, 571424, 624995, 714280, 791840, 999992, 1030604, 1249990, 1288255, 1428560, 1803557, 1999984, 2061208, 2499980, 2576510, 2857120, 3607114, 3999968, 4122416, 4999960, 5153020, 7214228, 8244832, 9017785, 9999920, 10306040, 12624899, 14428456, 18035570, 19999840, 20612080, 25249798, 28856912, 36071140, 41224160, 50499596, 57713824, 63124495, 72142280, 100999192, 126248990, 144284560, 201998384, 252497980, 288569120, 403996768, 504995960, 1009991920, 2019983840]

約数ペア:

[(1, 2019983840), (2, 1009991920), (4, 504995960), (5, 403996768), (7, 288569120), (8, 252497980), (10, 201998384), (14, 144284560), (16, 126248990), (20, 100999192), (28, 72142280), (32, 63124495), (35, 57713824), (40, 50499596), (49, 41224160), (56, 36071140), (70, 28856912), (80, 25249798), (98, 20612080), (101, 19999840), (112, 18035570), (140, 14428456), (160, 12624899), (196, 10306040), (202, 9999920), (224, 9017785), (245, 8244832), (280, 7214228), (392, 5153020), (404, 4999960), (490, 4122416), (505, 3999968), (560, 3607114), (707, 2857120), (784, 2576510), (808, 2499980), (980, 2061208), (1010, 1999984), (1120, 1803557), (1414, 1428560), (1568, 1288255), (1616, 1249990), (1960, 1030604), (2020, 999992), (2551, 791840), (2828, 714280), (3232, 624995), (3535, 571424), (3920, 515302), (4040, 499996), (4949, 408160), (5102, 395920), (5656, 357140), (7070, 285712), (7840, 257651), (8080, 249998), (9898, 204080), (10204, 197960), (11312, 178570), (12755, 158368), (14140, 142856), (16160, 124999), (17857, 113120), (19796, 102040), (20408, 98980), (22624, 89285), (24745, 81632), (25510, 79184), (28280, 71428), (35714, 56560), (39592, 51020), (40816, 49490)]