181414940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{18251}}^1$

素因数の和:18338

約数の個数: 48

約数和(自身を含む): 441552384

約数和(自身を除く): 260137444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 18251, 36502, 73004, 91255, 127757, 182510, 255514, 365020, 511028, 638785, 1277570, 1295821, 2555140, 2591642, 5183284, 6479105, 9070747, 12958210, 18141494, 25916420, 36282988, 45353735, 90707470, 181414940]

約数ペア:

[(1, 181414940), (2, 90707470), (4, 45353735), (5, 36282988), (7, 25916420), (10, 18141494), (14, 12958210), (20, 9070747), (28, 6479105), (35, 5183284), (70, 2591642), (71, 2555140), (140, 1295821), (142, 1277570), (284, 638785), (355, 511028), (497, 365020), (710, 255514), (994, 182510), (1420, 127757), (1988, 91255), (2485, 73004), (4970, 36502), (9940, 18251)]