209945890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{3541}}^1$

素因数の和:3584

約数の個数: 72

約数和(自身を含む): 483334236

約数和(自身を除く): 273388346

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 121, 154, 242, 245, 385, 490, 539, 605, 770, 847, 1078, 1210, 1694, 2695, 3541, 4235, 5390, 5929, 7082, 8470, 11858, 17705, 24787, 29645, 35410, 38951, 49574, 59290, 77902, 123935, 173509, 194755, 247870, 272657, 347018, 389510, 428461, 545314, 856922, 867545, 1363285, 1735090, 1908599, 2142305, 2726570, 2999227, 3817198, 4284610, 5998454, 9542995, 14996135, 19085990, 20994589, 29992270, 41989178, 104972945, 209945890]

約数ペア:

[(1, 209945890), (2, 104972945), (5, 41989178), (7, 29992270), (10, 20994589), (11, 19085990), (14, 14996135), (22, 9542995), (35, 5998454), (49, 4284610), (55, 3817198), (70, 2999227), (77, 2726570), (98, 2142305), (110, 1908599), (121, 1735090), (154, 1363285), (242, 867545), (245, 856922), (385, 545314), (490, 428461), (539, 389510), (605, 347018), (770, 272657), (847, 247870), (1078, 194755), (1210, 173509), (1694, 123935), (2695, 77902), (3541, 59290), (4235, 49574), (5390, 38951), (5929, 35410), (7082, 29645), (8470, 24787), (11858, 17705)]