20411930

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{541}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 46828800

約数和(自身を除く): 26416870

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 343, 385, 490, 539, 541, 686, 770, 1078, 1082, 1715, 2695, 2705, 3430, 3773, 3787, 5390, 5410, 5951, 7546, 7574, 11902, 18865, 18935, 26509, 29755, 37730, 37870, 41657, 53018, 59510, 83314, 132545, 185563, 208285, 265090, 291599, 371126, 416570, 583198, 927815, 1457995, 1855630, 2041193, 2915990, 4082386, 10205965, 20411930]

約数ペア:

[(1, 20411930), (2, 10205965), (5, 4082386), (7, 2915990), (10, 2041193), (11, 1855630), (14, 1457995), (22, 927815), (35, 583198), (49, 416570), (55, 371126), (70, 291599), (77, 265090), (98, 208285), (110, 185563), (154, 132545), (245, 83314), (343, 59510), (385, 53018), (490, 41657), (539, 37870), (541, 37730), (686, 29755), (770, 26509), (1078, 18935), (1082, 18865), (1715, 11902), (2695, 7574), (2705, 7546), (3430, 5951), (3773, 5410), (3787, 5390)]