31359020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2909}}^1$

素因数の和:2943

約数の個数: 72

約数和(自身を含む): 83598480

約数和(自身を除く): 52239460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 2909, 5390, 5818, 10780, 11636, 14545, 20363, 29090, 31999, 40726, 58180, 63998, 81452, 101815, 127996, 142541, 159995, 203630, 223993, 285082, 319990, 407260, 447986, 570164, 639980, 712705, 895972, 1119965, 1425410, 1567951, 2239930, 2850820, 3135902, 4479860, 6271804, 7839755, 15679510, 31359020]

約数ペア:

[(1, 31359020), (2, 15679510), (4, 7839755), (5, 6271804), (7, 4479860), (10, 3135902), (11, 2850820), (14, 2239930), (20, 1567951), (22, 1425410), (28, 1119965), (35, 895972), (44, 712705), (49, 639980), (55, 570164), (70, 447986), (77, 407260), (98, 319990), (110, 285082), (140, 223993), (154, 203630), (196, 159995), (220, 142541), (245, 127996), (308, 101815), (385, 81452), (490, 63998), (539, 58180), (770, 40726), (980, 31999), (1078, 29090), (1540, 20363), (2156, 14545), (2695, 11636), (2909, 10780), (5390, 5818)]