16803980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{44221}}^1$

素因数の和:44249

約数の個数: 24

約数和(自身を含む): 37146480

約数和(自身を除く): 20342500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 44221, 88442, 176884, 221105, 442210, 840199, 884420, 1680398, 3360796, 4200995, 8401990, 16803980]

約数ペア:

[(1, 16803980), (2, 8401990), (4, 4200995), (5, 3360796), (10, 1680398), (19, 884420), (20, 840199), (38, 442210), (76, 221105), (95, 176884), (190, 88442), (380, 44221)]