128385190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{20411}}^1$

素因数の和:20472

約数の個数: 32

約数和(自身を含む): 251312544

約数和(自身を除く): 122927354

約数列:

[1, 2, 5, 10, 17, 34, 37, 74, 85, 170, 185, 370, 629, 1258, 3145, 6290, 20411, 40822, 102055, 204110, 346987, 693974, 755207, 1510414, 1734935, 3469870, 3776035, 7552070, 12838519, 25677038, 64192595, 128385190]

約数ペア:

[(1, 128385190), (2, 64192595), (5, 25677038), (10, 12838519), (17, 7552070), (34, 3776035), (37, 3469870), (74, 1734935), (85, 1510414), (170, 755207), (185, 693974), (370, 346987), (629, 204110), (1258, 102055), (3145, 40822), (6290, 20411)]