1621460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 3810240

約数和(自身を除く): 2188780

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 251, 323, 340, 380, 502, 646, 1004, 1255, 1292, 1615, 2510, 3230, 4267, 4769, 5020, 6460, 8534, 9538, 17068, 19076, 21335, 23845, 42670, 47690, 81073, 85340, 95380, 162146, 324292, 405365, 810730, 1621460]

約数ペア:

[(1, 1621460), (2, 810730), (4, 405365), (5, 324292), (10, 162146), (17, 95380), (19, 85340), (20, 81073), (34, 47690), (38, 42670), (68, 23845), (76, 21335), (85, 19076), (95, 17068), (170, 9538), (190, 8534), (251, 6460), (323, 5020), (340, 4769), (380, 4267), (502, 3230), (646, 2510), (1004, 1615), (1255, 1292)]